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A episteme médica e as incertezas do diagnóstico de Covid longa: um ensaio antropológico longa
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Ferreira, Jaqueline

; Nóbrega, Graziani Araújo de Lima da

Horizontes Antropológicos

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aug 2024, Volume 30 N. 69 elocation e690407

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Long COVID is a condition following the acute Covid-19 infection, with persistence of symptoms for a long time or the worsening or emergence of other complications. Despite the recurrence of this phenomenon, there is a diagnostic invisibility. This essay aims to analyze, from the point of view of the medical epistemology, the uncertainties surrounding this phenomenon from its recognition as a disease, as well as its nonspecific symptoms, especially fatigue, which ultimately influence its diagnostic invisibility. This type of analysis is a proposal in tune with the Socio-anthropological approach to health and disease and the Anthropology of Biomedicine. As it is a global health issue that translates into a temporary or permanent disabling condition, understanding the reasons for its diagnostic invisibility from the point of view of the Western biomedicine can help to better understand it and manage its care. Covid19 Covid 19 Covid-1 infection complications analyze epistemology fatigue Socioanthropological Socio anthropological Biomedicine care Covid1 1 Covid-

Resumo A Covid longa é uma condição subsequente da infecção aguda pela Covid-19 com persistência dos sintomas por longo tempo ou agravamento ou surgimento de outras complicações. Apesar da recorrência desse fenômeno há uma invisibilidade diagnóstica. Este ensaio objetiva analisar, sob o ponto de vista da epistemologia médica, as incertezas que circundam esse fenômeno desde a sua atribuição como doença e os sintomas inespecíficos, sobretudo a fadiga, que terminam por influenciar a sua invisibilidade diagnóstica. Esse tipo de análise é uma proposta sintonizada com a abordagem socioantropológica da saúde e doença e da antropologia da biomedicina. Por tratar-se de um problema de saúde global e que se traduz em uma condição incapacitante temporária ou permanente, compreender as razões de sua invisibilidade diagnóstica do ponto de vista da biomedicina ocidental pode auxiliar na sua melhor compreensão e na gestão do seu cuidado. Covid19 19 Covid-1 complicações analisar médica inespecíficos fadiga tratarse tratar permanente cuidado Covid1 1 Covid-

https://doi.org/10.1590/1806-9983e690407

Vaccination coverage, hesitancy and associated factors: a household survey of a cohort of children born in 2017 and 2018 in urban areas of state capital cities in the Brazilian Northeast
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Saavedra, Ramon da Costa

; Santiago, Martha Suely Itaparica de Carvalho

; Teixeira, Maria da Glória Lima Cruz

; Antunes, Maria Bernadete de Cerqueira

; Queiroz, Rejane Christine de Sousa

; Lima, Luisa Helena de Oliveira

; Ramos Jr, Alberto Novaes

; Ferreira, Anderson Fuentes

; Maciel, Adjoane Mauricio Silva

; Barbosa, Jaqueline Caracas

; França, Ana Paula

; Domingues, Carla Magda Allan Santos

; Moraes, José Cássio de

; Silva, Adriana Ilha da

; Ramos Jr., Alberto Novaes

; França, Ana Paula

; Oliveira, Andrea de Nazaré Marvão

; Boing, Antonio Fernando

; Domingues, Carla Magda Allan Santos

; Oliveira, Consuelo Silva de

; Maciel, Ethel Leonor Noia

; Guibu, Ione Aquemi

; Mirabal, Isabelle Ribeiro Barbosa

; Barbosa, Jaqueline Caracas

; Lima, Jaqueline Costa

; Moraes, José Cássio de

; Luhm, Karin Regina

; Caetano, Karlla Antonieta Amorim

; Lima, Luisa Helena de Oliveira

; Antunes, Maria Bernadete de Cerqueira

; Teixeira, Maria da Glória Lima Cruz

; Teixeira, Maria Denise de Castro

; Borges, Maria Fernanda de Sousa Oliveira

; Queiroz, Rejane Christine de Sousa

; Gurgel, Ricardo Queiroz

; Barata, Rita Barradas

; Azevedo, Roberta Nogueira Calandrini de

; Oliveira, Sandra Maria do Valle Leone de

; Teles, Sheila Araújo

; Gama, Silvana Granado Nogueira da

; Mengue, Sotero Serrate

; Simões, Taynãna César

; Nascimento, Valdir

; Araújo, Wildo Navegantes de

Epidemiologia e Serviços de Saúde

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2024, Volume 33 N. spe2 elocation e20231298

Abstract: En Pt Es | Text: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT Objective To estimate vaccination coverage and analyze sociodemographic factors associated with non-vaccination in children born in 2017 and 2018 in the state capitals of Northeast Brazil. Methods A household survey using cluster sampling was conducted from 2020-2022 to estimate vaccination coverage and hesitancy. Factors associated with non-vaccination were analyzed using logistic regression to calculate Odds Ratios (OR) and their Confidence Intervals (95%CI). Results Natal was the capital with the lowest vaccination coverage, below 75.0% for most immunizers. Teresina had rates equal to or greater than 90.0% for all vaccines. Among those interviewed, 99.1% (95%CI 98.9;99.3) believe that vaccines are important for health; 95.4% (95%CI 95.0;95.8) trust immunobiologicals and 79.6% (95%CI% 78.8;80.3) are not afraid of reactions. Belonging to the highest socioeconomic stratum (adjusted OR: 1.34 – 95%CI 1.20;1.50) was as a factor associated with non-vaccination. Conclusion Low coverage highlights the need for a better understanding of regional specificities and social inequalities.

RESUMO Objetivo Estimar a cobertura vacinal e analisar fatores sociodemográficos associados à não vacinação em crianças nascidas vivas em 2017 e 2018 nas capitais do Nordeste brasileiro. Métodos Realizou-se inquérito domiciliar com amostragem por conglomerados, entre 2020 e 2022, para estimar cobertura e hesitação vacinal. Fatores associados à não vacinação foram analisados usando-se regressão logística para calcular odds ratio (OR) e seus intervalos de confiança (IC95%). Resultados A capital com menores coberturas vacinais foi Natal, com < 75,0% para a maioria dos imunizantes; Teresina apresentou coberturas ≥ 90,0% em todos os imunizantes. Dos entrevistados, 99,1% (IC95% 98,9;99,3) acreditavam que vacinas são importantes para a saúde; 95,4% (IC95% 95,0;95,8) confiavam nos imunobiológicos distribuídos pelo governo; e 79,6% (IC95% 78,8;80,3) não tinham medo de reações adversas. Residir em estrato socioeconômico mais alto (OR ajustado: 1,34 – IC95% 1,20;1,50) foi fator associado à não vacinação. Conclusão As baixas coberturas destacam a necessidade de entender melhor as especificidades regionais e as desigualdades sociais.

resumen está disponible en el texto completo

https://doi.org/10.1590/s2237-96222024v33e20231298.especial2.en

Vaccination coverage, barriers and vaccine hesitancy in children up to 24 months old: a population survey in a state capital in the Western Amazon
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Macedo, Thaiane Rodrigues de Oliveira

; Borges, Maria Fernanda de Sousa Oliveira

; Silva, Ilce Ferreira da

; França, Ana Paula

; Moraes, José Cássio de

; Silva, Adriana Ilha da

; Ramos Jr., Alberto Novaes

; França, Ana Paula

; Oliveira, Andrea de Nazaré Marvão

; Boing, Antonio Fernando

; Domingues, Carla Magda Allan Santos

; Oliveira, Consuelo Silva de

; Maciel, Ethel Leonor Noia

; Guibu, Ione Aquemi

; Mirabal, Isabelle Ribeiro Barbosa

; Barbosa, Jaqueline Caracas

; Lima, Jaqueline Costa

; Moraes, José Cássio de

; Luhm, Karin Regina

; Caetano, Karlla Antonieta Amorim

; Lima, Luisa Helena de Oliveira

; Antunes, Maria Bernadete de Cerqueira

; Teixeira, Maria da Gloria

; Teixeira, Maria Denise de Castro

; Borges, Maria Fernanda de Sousa Oliveira

; Queiroz, Rejane Christine de Sousa

; Gurgel, Ricardo Queiroz

; Barata, Rita Barradas

; Azevedo, Roberta Nogueira Calandrini de

; Oliveira, Sandra Maria do Valle Leone de

; Teles, Sheila Araújo

; Gama, Silvana Granado Nogueira da

; Mengue, Sotero Serrate

; Simões, Taynãna César

; Nascimento, Valdir

; Araújo, Wildo Navegantes de

Epidemiologia e Serviços de Saúde

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2024, Volume 33 N. spe2 elocation e20231295

Abstract: En Pt Es | Text: En Pt Es | PDF: En | PDF: Pt | PDF: Es

resumen está disponible en el texto completo

https://doi.org/10.1590/s2237-96222024v33e20231295.especial2.en

Mast cells and factor XIIIa+ dendrocytes in actinic cheilitis and lip squamous cell carcinoma XIIIa
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Flores, Isadora Luana

; De Arruda, José Alcides Almeida

; Abrantes, Thamiris de Castro

; Gamba, Thiago de Oliveira

; Abrahão, Aline Correa

; Anbinder, Ana Lia

; Ribeiro, Jaqueline Lemes

; Vasconcelos, Ana Carolina Uchoa

; Andrade, Bruno Augusto Benevenuto de

; Aguiar, Maria Cassia Ferreira de

; Gomes, Ana Paula Neutzling

; Abreu, Lucas Guimarães

; Mesquita, Ricardo Alves

Brazilian Oral Research

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2024, Volume 38 elocation e113

Abstract: En | Text: En | PDF: En

Abstract There is an interaction between dendrocytes and mast cells in the skin. However, in elastosis-related diseases such as actinic cheilitis (AC) and lower lip squamous cell carcinoma (LLSCC), this interaction remains unknown. We investigated the presence of intact and degranulated mast cells in AC and LLSCC. Associations of mast cells with factor XIIIa+ dendrocytes and inflammatory infiltrate were assessed. Forty cases of AC (20 with low-grade and 20 with high-grade epithelial dysplasia), 50 cases of LLSCC, and 10 cases of normal oral mucosa were evaluated. Toluidine blue staining was performed to identify mast cells, and mast cell densities were calculated in the inflammatory infiltrate. Factor XIIIa+ dendrocytes were immunohistochemically quantified. The highest ratio of intact/degranulated mast cells density was detected in LLSCC (5.9 cells/mm2), followed by AC with high-grade epithelial dysplasia (4.8 cells/mm2). Statistically significant differences were found in the density of intact mast cells compared to degranulated mast cells in AC with low-grade epithelial dysplasia (p<0.001), AC with high-grade epithelial dysplasia (p=0.005), and LLSCC (p<0.001). A positive correlation between degranulated mast cells and total inflammatory infiltrate (p=0.03) was observed in the LLSCC group. The expression of factor XIIIa+ dendrocytes was highest in AC with low-grade epithelial dysplasia (16.5 cells/mm2). The link between mast cell density, factor XIIIa+ dendrocytes, and inflammatory infiltrate indicates a potential crosstalk in lip carcinogenesis. skin However elastosisrelated elastosis related (AC , (LLSCC) unknown XIIIa assessed (2 lowgrade low grade 2 highgrade high dysplasia, dysplasia) 5 1 evaluated quantified intactdegranulated 5.9 59 9 (5. cells/mm2, cellsmm2 cellsmm cells/mm2 mm2 mm cells/mm2) 4.8 48 4 8 (4. cells/mm2. . p<0.001, p0001 p p<0.001 0 001 (p<0.001) p=0.005, p0005 p=0.005 005 (p=0.005) p<0.001. p=0.03 p003 03 (p=0.03 group 16.5 165 16 (16. carcinogenesis (LLSCC ( 5. (5 cells/mm 4. (4 p000 p<0.00 00 (p<0.001 p=0.00 (p=0.005 p=0.0 p00 (p=0.0 16. (16 p<0.0 (p<0.00 (p=0.00 p=0. p0 (p=0. (1 p<0. (p<0.0 p=0 (p=0 p<0 (p<0. p= (p= p< (p<0 (p (p<

https://doi.org/10.1590/1807-3107bor-2024.vol38.0113

Soluble isoforms of the DC-SIGN receptor can increase the dengue virus infection in immature dendritic cells DCSIGN DC SIGN
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Pereira, Lailah Horácio Sales

; Alves, Amanda do Carmo

; Lopes, Gabriela Francine Martins

; Silva, Brenda Fernandes da

; Vieira, Mariana Sousa

; Lopes, Débora de Oliveira

; Ferreira, Jaqueline Maria Siqueira

; Santos, Luciana Lara dos

Brazilian Journal of Infectious Diseases

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2024, Volume 28 N. 6 elocation 103873

Abstract: En | Text: En | PDF: En

ABSTRACT Dengue is a disease with a high-impact on public health worldwide. Many researches have focused on the cell receptors involved in its pathogenesis. The role of soluble isoforms of DC-SIGN (Dendritic Cell-Specific ICAM-3 Grabbing Non-integrin) receptor in the process of Dengue Virus (DENV) infection is not well understood. This work proposes to evaluate changes in the infection process of Immature Dendritic Cells (iDCs) by DENV in the presence of DC-SIGN recombinant soluble isoforms 8, 10, and 12. The recombinant isoforms were built by heterologous expression, the DENV-2 was multiplied in the Aedes albopictus C6/36 cells and quantified in BHK-21 cells, and the iDCs were produced from the THP-1 strain. Infection assays were performed in the presence of iDCs, DENV-2, and isoforms 8, 10, and 12 separately at 25, 50 and 100 ng/mL. The final viral load was estimated by qPCR and statistical analysis was performed by Kruskal-Wallis and ANOVA tests. The iDC profile was confirmed by increasing expression of CD11c, CD86, and CD209 surface markers and maintaining CD14 expression. Infection assays demonstrated a 23-fold increase in DENV viral load in the presence of isoforms 8 and 10 at 100 ng/mL compared to the viral control (p < 0.05), while isoform 12 did not alter the viral load. It was possible to conclude that at 100 ng/mL isoforms (8 and 10) can interact with DENV, increasing viral infection, and potentially acting as opsonins. highimpact high impact worldwide pathogenesis DCSIGN DC SIGN CellSpecific Cell Specific ICAM3 ICAM 3 ICAM- Nonintegrin Non integrin Non-integrin (DENV understood (iDCs DENV2 2 DENV- C636 C C6 36 C6/3 BHK21 BHK 21 BHK-2 THP1 THP 1 THP- strain DENV2, 2, 25 5 ngmL ng mL KruskalWallis Kruskal Wallis tests CD11c CDc CD c CD86 CD20 CD1 23fold fold 23 p 0.05, 005 0.05 , 0 05 0.05) ( opsonins C63 C6/ BHK2 BHK- CD8 CD2 00 0.0 0.

https://doi.org/10.1016/j.bjid.2024.103873

Occurrence of Babesia and Anaplasma in ruminants from the Catimbau National Park, Semiarid Region of Northeast Brazil Park
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Moura, Liliane Moreira Donato

; Farias, Ila Ferreira

; Sá, João Claudio Bezerra de

; Souza, Dênisson da Silva e

; Santos, Paula Talita Torres

; Freschi, Carla Roberta

; Oliveira, Jaqueline Bianque de

; Moraes-Filho, Jonas

; Machado, Rosangela Zacarias

; Azevedo, Sergio Santos de

; Horta, Mauricio Claudio

Revista Brasileira de Parasitologia Veterinária

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2024, Volume 33 N. 3 elocation e005224

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Babesiosis and Anaplasmosis are diseases associated with economic losses; ticks and blood-sucking flies are important zoonotic vectors and reservoirs. This study aimed to investigate the presence of anti-Babesia spp. and anti-Anaplasma marginale antibodies using enzyme-linked immunosorbent assay (ELISA), in ruminants at the Catimbau National Park. Blood samples were collected from 119 sheep, 119 goats, and 47 cattle. Rhipicephalus microplus ticks were collected from cattle. ELISA showed seropositivity of 34% (16/47), 20.3% (24/119), and 16% (19/119) for anti-Babesia bovis; 34% (16/47), 15.2% (18/119), and 9% (7/119) for anti-Babesia bigemina; and 34% (16/47), 35.6% (42/119), and 17% (20/119) for anti-A. marginale antibodies in cattle, goats, and sheep, respectively. The information collected using an epidemiological questionnaire showed that mostly are breed in a semi-intensive system, with access to Caatinga vegetation. The circulation of B. bovis, B. bigemina, and A. marginale was confirmed. Thus, based on the prevalence, this suggests this is an enzootic instability area and is prone to outbreaks. losses bloodsucking blood sucking reservoirs antiBabesia anti Babesia spp antiAnaplasma Anaplasma enzymelinked enzyme linked ELISA, , (ELISA) Park 11 sheep goats 4 cattle 34 16/47, 1647 16/47 16 (16/47) 203 20 3 20.3 24/119, 24119 24/119 24 (24/119) 19/119 19119 19 (19/119 bovis 152 15 2 15.2 18/119, 18119 18/119 18 (18/119) 9 7/119 7119 7 (7/119 bigemina 356 35 6 35.6 42/119, 42119 42/119 42 (42/119) 17 20/119 20119 (20/119 antiA. antiA A anti-A respectively semiintensive semi intensive system vegetation B confirmed Thus prevalence outbreaks (ELISA 1 164 16/4 (16/47 20. 2411 24/11 (24/119 19/11 1911 (19/11 15. 1811 18/11 (18/119 7/11 711 (7/11 35. 4211 42/11 (42/119 20/11 2011 (20/11 16/ (16/4 241 24/1 (24/11 19/1 191 (19/1 181 18/1 (18/11 7/1 71 (7/1 421 42/1 (42/11 20/1 201 (20/1 (16/ 24/ (24/1 19/ (19/ 18/ (18/1 7/ (7/ 42/ (42/1 20/ (20/ (16 (24/ (19 (18/ (7 (42/ (20 (1 (24 (18 ( (42 (2 (4

Resumo A Babesiose e a Anaplasmose são doenças associadas a grandes perdas econômicas, sendo carrapatos e moscas sugadoras de sangue importantes vetores e reservatórios zoonóticos dessas enfermidades. Este estudo teve como objetivo investigar a circulação de anticorpos anti-Babesia spp. e anti-Anaplasma marginale usando Ensaio de Imunoabsorção Enzimática (ELISA), e Babesia spp. em ruminantes no Parque Nacional do Catimbau. Foram coletados ectoparasitos e amostras de sangue de 119 ovinos, 119 caprinos e 47 bovinos. Carrapatos Rhipicephalus microplus foram coletados em bovinos. O teste ELISA mostrou soropositividade de 34% (16/47), 20,3% (24/119) e 16% (19/119) para anti-Babesia bovis; 34% (16/47), 15,2% (18/119) e 9% (7/119) para anti-Babesia bigemina; e 34% (16/47), 35,6% (42/119) e 17% (20/119) para anti-A. marginale em bovinos, caprinos e ovinos, respectivamente. As informações coletadas por meio de questionário epidemiológico mostraram a maioria com sistema semi-intensivo, com acesso à vegetação de Caatinga. A circulação de B. bovis, B. bigemina e A. marginale foi confirmada. Assim, com base na prevalência, essa área foi sugerida como de instabilidade enzoótica e propensa a surtos. econômicas enfermidades antiBabesia anti spp antiAnaplasma Anaplasma ELISA, , (ELISA) Catimbau 11 ovinos 4 bovinos 34 16/47, 1647 16/47 16 (16/47) 203 20 3 20,3 24/119 24119 24 (24/119 19/119 19119 19 (19/119 bovis 152 15 2 15,2 18/119 18119 18 (18/119 9 7/119 7119 7 (7/119 356 35 6 35,6 42/119 42119 42 (42/119 17 20/119 20119 (20/119 antiA. antiA anti-A respectivamente semiintensivo, semiintensivo semi intensivo, intensivo semi-intensivo Caatinga B confirmada Assim prevalência surtos (ELISA 1 164 16/4 (16/47 20, 24/11 2411 (24/11 19/11 1911 (19/11 15, 18/11 1811 (18/11 7/11 711 (7/11 35, 42/11 4211 (42/11 20/11 2011 (20/11 16/ (16/4 24/1 241 (24/1 19/1 191 (19/1 18/1 181 (18/1 7/1 71 (7/1 42/1 421 (42/1 20/1 201 (20/1 (16/ 24/ (24/ 19/ (19/ 18/ (18/ 7/ (7/ 42/ (42/ 20/ (20/ (16 (24 (19 (18 (7 (42 (20 (1 (2 ( (4

https://doi.org/10.1590/s1984-29612024062.

Vaccination coverage, barriers and vaccine hesitancy in children up to 24 months old: a population survey in a state capital in the Western Amazon coverage 2 old
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Macedo, Thaiane Rodrigues de Oliveira

; Borges, Maria Fernanda de Sousa Oliveira

; Silva, Ilce Ferreira da

; França, Ana Paula

; Moraes, José Cássio de

; Silva, Adriana Ilha da

; Ramos Jr., Alberto Novaes

; França, Ana Paula

; Oliveira, Andrea de Nazaré Marvão

; Boing, Antonio Fernando

; Domingues, Carla Magda Allan Santos

; Oliveira, Consuelo Silva de

; Maciel, Ethel Leonor Noia

; Guibu, Ione Aquemi

; Mirabal, Isabelle Ribeiro Barbosa

; Barbosa, Jaqueline Caracas

; Lima, Jaqueline Costa

; Moraes, José Cássio de

; Luhm, Karin Regina

; Caetano, Karlla Antonieta Amorim

; Lima, Luisa Helena de Oliveira

; Antunes, Maria Bernadete de Cerqueira

; Teixeira, Maria da Gloria

; Teixeira, Maria Denise de Castro

; Borges, Maria Fernanda de Sousa Oliveira

; Queiroz, Rejane Christine de Sousa

; Gurgel, Ricardo Queiroz

; Barata, Rita Barradas

; Azevedo, Roberta Nogueira Calandrini de

; Oliveira, Sandra Maria do Valle Leone de

; Teles, Sheila Araújo

; Gama, Silvana Granado Nogueira da

; Mengue, Sotero Serrate

; Simões, Taynãna César

; Nascimento, Valdir

; Araújo, Wildo Navegantes de

Epidemiologia e Serviços de Saúde

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2024, Volume 33 N. spe2 elocation e20231295

Abstract: En Pt Es | Text: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT Objective To estimate vaccination coverage, identify barriers and hesitancy to vaccinating children up to 24 months, born between 2017-2018, living in the urban area of Rio Branco, Acre, Brazil. Methods Population survey carried out from 2020 to 2021, which assessed sociodemographic characteristics and vaccination status among children. Results Among 451 included children, vaccination coverage was below 80%. Meningococcal C vaccine had the lowest coverage for administered doses (76.3%; 95%CI 70.5;81.3) and doses on time (27.4%; 95%CI 23.1;32.1). The statements “vaccines cause serious adverse reactions” (26.4%; 95%CI 18.1;36.8) and “you don’t need vaccination for diseases that no longer exist” (22%; 95%CI 15.7;29.8) were the most frequent regarding vaccination hesitancy. Lack of vaccines was the main barrier to care (86.6%; 95%CI 71.8;94.3). Conclusion Vaccination coverage in children born in 2017-2018 was below the target recommended for the full schedule of administered doses, both valid and timely administered. 2 months 20172018, 20172018 2017 2018, 2018 Branco Acre Brazil 202 2021 45 80 80% 76.3% 763 76 3 (76.3% 95CI CI 95 70.581.3 705813 70.5 81.3 70 5 81 70.5;81.3 27.4% 274 27 4 (27.4% 23.132.1. 231321 23.1 32.1 . 23 1 32 23.1;32.1) reactions 26.4% 264 26 (26.4% 18.136.8 181368 18.1 36.8 18 36 8 18.1;36.8 you dont don t exist 22% 22 (22% 15.729.8 157298 15.7 29.8 15 7 29 15.7;29.8 86.6% 866 86 6 (86.6% 71.894.3. 718943 71.8 94.3 71 94 71.8;94.3) 2017-201 2017201 201 20 76.3 (76.3 9 581 70.581. 70581 705 70. 813 81. 70.5;81. 27.4 (27.4 132 23.132.1 23132 231 23. 321 32. 23.1;32.1 26.4 (26.4 136 18.136. 18136 181 18. 368 36. 18.1;36. (22 729 15.729. 15729 157 15. 298 29. 15.7;29. 86.6 (86.6 894 71.894.3 71894 718 71. 943 94. 71.8;94.3 2017-20 201720 76. (76. 58 70.581 7058 70.5;81 27. (27. 13 23.132. 2313 23.1;32. 26. (26. 18.136 1813 18.1;36 (2 72 15.729 1572 15.7;29 86. (86. 89 71.894. 7189 71.8;94. 2017-2 20172 (76 70.58 70.5;8 (27 23.132 23.1;32 (26 18.13 18.1;3 ( 15.72 15.7;2 (86 71.894 71.8;94 2017- (7 70.5; 23.13 23.1;3 18.1; 15.7; (8 71.89 71.8;9 23.1; 71.8;

RESUMO Objetivo Estimar a cobertura vacinal, identificar barreiras e hesitação à vacinação em crianças com até 24 meses, nascidas em 2017 e 2018, residentes na área urbana de Rio Branco-AC. Métodos Inquérito populacional realizado de 2020 a 2021, que avaliou as características sociodemográficas e a situação vacinal em crianças nascidas entre 2017 e 2018. Resultados Entre as 451 crianças estudadas, as coberturas vacinais foram inferiores a 80%. A menor cobertura para doses aplicadas (76,3%; IC95% 70,5;81,3) e oportunas (27,4%; IC95% 23,1;32,1) foi para o reforço da meningocócica C. As afirmações “vacinas causam reações adversas graves” (26,4%; IC95% 18,1;36,8) e “não precisa da vacina para doenças que não existem mais” (22%; IC95% 15,7;29,8) foram as mais frequentes quanto à hesitação vacinal. A falta da vacina foi a principal barreira assistencial (86,6%; IC95% 71,8;94,3). Conclusão As coberturas vacinais em crianças nascidas em 2017 e 2018 ficaram abaixo da meta preconizada nos esquemas completos de doses aplicadas, válidas e oportunas. 2 meses 201 BrancoAC. BrancoAC Branco AC. AC Branco-AC 202 2021 45 estudadas 80 80% 76,3% 763 76 3 (76,3% IC95 IC 70,581,3 705813 70,5 81,3 70 5 81 70,5;81,3 27,4% 274 27 4 (27,4% 23,132,1 231321 23,1 32,1 23 1 32 23,1;32,1 C vacinas graves 26,4% 264 26 (26,4% 18,136,8 181368 18,1 36,8 18 36 8 18,1;36,8 22% 22 (22% 15,729,8 157298 15,7 29,8 15 7 29 15,7;29,8 86,6% 866 86 6 (86,6% 71,894,3. 718943 71,8 94,3 . 71 94 71,8;94,3) 20 76,3 (76,3 IC9 581 70,581, 70581 705 70, 813 81, 70,5;81, 27,4 (27,4 132 23,132, 23132 231 23, 321 32, 23,1;32, 26,4 (26,4 136 18,136, 18136 181 18, 368 36, 18,1;36, (22 729 15,729, 15729 157 15, 298 29, 15,7;29, 86,6 (86,6 894 71,894,3 71894 718 71, 943 94, 9 71,8;94,3 76, (76, 58 70,581 7058 70,5;81 27, (27, 13 23,132 2313 23,1;32 26, (26, 18,136 1813 18,1;36 (2 72 15,729 1572 15,7;29 86, (86, 89 71,894, 7189 71,8;94, (76 70,58 70,5;8 (27 23,13 23,1;3 (26 18,13 18,1;3 ( 15,72 15,7;2 (86 71,894 71,8;94 (7 70,5; 23,1; 18,1; 15,7; (8 71,89 71,8;9 71,8;

resumen está disponible en el texto completo

https://doi.org/10.1590/s2237-96222024v33e20231295.especial2.en

Clinical epidemiological and laboratory investigation in co-infection with COVID-19 and tuberculosis coinfection co infection COVID19 COVID 19 COVID-1 COVID1 1 COVID-
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Belchior, Ana Carulina Guimarães

; Freitas Neto, Antônio Martins de

; Gusmao, Grassyelly Silva

; Santos, Evelin Jaqueline Lima dos

; Lemos, Everton Ferreira

; Pompilio, Mauricio Antonio

; Volpe-Chaves, Cláudia Elizabeth

; Brito, Eliana da Costa Alvarenga de

; Oliveira, Everton Falcão de

; Carreiro, Ana Caroline Blanco

; Paniago, Anamaria Mello Miranda

Revista do Instituto de Medicina Tropical de São Paulo

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2024, Volume 66 elocation e65

Abstract: En | Text: En | PDF: En

ABSTRACT Currently, COVID-19 and tuberculosis (TB) are the deadliest infectious diseases worldwide. Their synergy, form of presentation, morbidity, and mortality are data that have been scarcely explored. Thus, this study aimed to characterize the clinical, epidemiological, and laboratory factors of this co-infection and to analyze the factors associated with the active TB among COVID-19 cases. A case-control study was conducted with a retrospective survey of 21 laboratory-confirmed COVID-19/TB co-infected patients (case group) and 21 COVID-19 patients (control group). The study included participants from eight hospitals in Campo Grande city, capital of Mato Grosso do Sul State, Brazil, from March 2020 to March 2022. Association analysis and binomial logistic regression were employed with statistical significance set at p≤0.05. From the 21 identified cases of COVID-19/TB co-infection, we found a more frequent association with HIV infection than the control-group, without worsening the outcome. COVID-19/TB patients had less dyspnea and less need for mechanical ventilation compared to the cases with COVID-19 only. On the other hand, COVID-19/TB patients had higher levels of C-reactive protein and lower hemoglobin levels, the latter variable was independently associated with COVID-19/TB. Among the clinical differences presented among COVID-19/TB co-infected patients, despite the association with HIV and lower clinical repercussions, only lower hemoglobin levels were associated with COVID-19/TB. Currently COVID19 COVID 19 COVID-1 (TB worldwide synergy presentation morbidity explored Thus epidemiological coinfection co casecontrol case control 2 laboratoryconfirmed confirmed COVID19/TB COVID19TB COVIDTB 19/TB coinfected infected group group. . city State Brazil 202 2022 p005 p 0 05 p≤0.05 coinfection, infection, controlgroup, controlgroup group, control-group outcome hand Creactive C reactive COVID19/TB. 19/TB. repercussions COVID1 1 COVID- 19TB 20 p00 p≤0.0 p0 p≤0. p≤0 p≤

https://doi.org/10.1590/s1678-9946202466065

Social representations of tuberculosis by people with the disease
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Moura, Adriana Alaíde Alves

; Silva, Silvio Eder Dias da

; Oliveira, Márcia Aparecida Ferreira de

; Rodrigues, Diego Pereira

; Rodrigues, Diana Madeira

; Rodrigues, Héwelly Demétrio Itaparica

; Ferreira, Jaqueline Alves

Revista Gaúcha de Enfermagem

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2024, Volume 45 elocation e20230159

Abstract: En Pt Es | Text: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT Objective: To understand the social representations of people with tuberculosis about the disease and its implications for following treatment. Method: A descriptive, qualitative study based on the Theory of Social Representations. It was conducted in a municipal health unit in the city of Belém. The participants were people diagnosed with tuberculosis and undergoing directly observed treatment, with the sample size defined by the data saturation technique. Data collection was done through semi-structured interviews. For data analysis it was used thematic content analysis. Results: The records converged into three categories: Representations of tuberculosis and its impacts on the diagnosis; The faces of treatment: challenges facing follow-up and hope; and Constructions of living with the disease in family and society. Final considerations: Living with the disease transforms everyday life and relationships. Discrimination and prejudice denote the need to reconfigure such representations for patients to be embraced. Objective treatment Method descriptive Belém technique semistructured semi structured interviews Results categories diagnosis followup follow up hope society considerations relationships embraced

RESUMO Objetivo: Compreender as representações sociais de pessoas com tuberculose sobre a doença e implicações no tratamento. Método: Estudo descritivo, de abordagem qualitativa, com base na Teoria das Representações Sociais. Realizado em uma unidade municipal de saúde no município de Belém. Os participantes foram pessoas com diagnóstico de tuberculose e em tratamento diretamente observado, cujo quantitativo foi definido pela técnica da saturação de dados. A coleta de dados foi realizada por meio de entrevista semiestruturada. Para análise dos dados utilizou-se a análise temática de conteúdo. Resultados: Os registros convergiram em três categorias: Representações da tuberculose e seus impactos frente ao diagnóstico; as faces do tratamento: desafios frente ao seguimento e esperança; e Construções do conviver com a doença em família e sociedade. Considerações finais: O conviver com a doença transforma o cotidiano e as relações. A discriminação e preconceito denotam a necessidade de reconfigurar tais representações, para o doente ser acolhido. Objetivo Método descritivo qualitativa Sociais Belém observado semiestruturada utilizouse utilizou se conteúdo Resultados categorias esperança sociedade finais relações acolhido

RESUMEN Objetivo: Comprender las representaciones sociales de personas con tuberculosis sobre la enfermedad y sus implicaciones para el seguimiento del tratamiento. Método: Estudio descriptivo, con abordaje cualitativo, basado en la Teoría de las Representaciones Sociales. Se llevó a cabo en una unidad de salud municipal de la ciudad de Belém. Los participantes fueron personas con diagnóstico de tuberculosis y en tratamiento bajo observación directa, cuyo cuantitativo fue definido por la técnica de saturación de datos. La recolección de datos se realizó a través de una entrevista semiestructurada. Para analizar dos datos, utilice un análisis de contenido temático. Resultados: Los registros convergieron en tres categorías: Representaciones de la tuberculosis y sus impactos en el diagnóstico; Como enfrenta el tratamiento: desafíos que enfrenta el seguimiento y la esperanza; y Construcciones de convivencia con la enfermedad en familia y sociedad. Consideraciones finales: O vivir con una enfermedad transforma la vida cotidiana y las relaciones. La discriminación y el prejuicio denotan la necesidad de reconfigurar estas representaciones, para que el docente sea aceptado. Objetivo Método descriptivo cualitativo Sociales Belém directa semiestructurada temático Resultados categorías esperanza sociedad finales relaciones aceptado

https://doi.org/10.1590/1983-1447.2024.20230159.en

10.

Occurrence of arbovirus infections in two riverine populations in the municipality of Humaitá, Amazonas, Brazil Humaitá Amazonas
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Silva, Jaqueline Carvalho de Oliveira

; Siqueira, Igor Rodrigo Ferreira

; Dornelas, Leormando Fortunato

; Ribeiro, Cristhian Magalhães

; Gomes, João Pedro Berno

; Guadagnin, Iagor Wingenbah

; Pereira, Antonieta Relvas

; Julião, Genimar Rebouças

; Camargo, Juliana de Souza Almeida Aranha

; Basano, Sergio Almeida

; Camargo, Luís Marcelo Aranha

Revista da Sociedade Brasileira de Medicina Tropical

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2024, Volume 57 elocation e00403-2024

Abstract: En | Text: En | PDF: En

ABSTRACT Background: The riverine communities of the Amazon comprise different social groups that inhabit the rural areas on the banks of rivers and lakes. Residents usually travel by river to rural and urban areas and are then exposed to urbanized diseases such as those caused by arbovirus infection. In Brazil, emerging diseases such as dengue, Zika, chikungunya, and those caused by infection with Oropouche and Mayaro viruses necessitate epidemiological surveillance. This study was aimed at determining the frequency of positivity for immunoglobulin (Ig)G and IgM antibodies against Zika, chikungunya, and dengue viruses and performing molecular analyses to detect viral RNA for the Zika, chikungunya, dengue virus, Oropouche, and Mayaro viruses, in the same serum samples obtained from riverside populations. Methods: This cross-sectional study was conducted in a riverside population in the Humaitá municipality of the Brazilian Amazon. More than 80% of the local population participated in this study. Entomological samples were collected to identify local mosquito vectors. Results: Analysis of 205 human serological samples revealed IgG antibodies against the dengue virus in 85 individuals. No molecular positivity was observed in human samples. Entomological analyses revealed 3,187 Diptera species, with Mansonia being the most frequent genus. Aedes aegypti and Aedes albopictus were not detected in the two collections. Conclusions: IgG antibodies against the dengue virus were highly prevalent, suggesting previous exposure. The absence of the arbovirus vectors Aedes aegypti and Aedes albopictus in the samples supports the hypothesis that the infections recorded likely occurred outside the riverside communities investigated. Background lakes Brazil Zika chikungunya surveillance Ig G populations Methods crosssectional cross sectional 80 Results 20 8 individuals 3187 3 187 3,18 species genus collections Conclusions prevalent exposure investigated 2 318 18 3,1 31 1 3,

https://doi.org/10.1590/0037-8682-0515-2023

11.

Nature-based Solutions to Adapt to Local Climate Change: Political Strategies in Brazilian Cities Naturebased Nature based Change
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Seleguim, Fabiana Barbi

; Weins, Niklas Werner

; Gutierrez, Eduardo Prado

; Soeira, Marcelo Rezende Calça

; Nichi, Jaqueline

; Ferreira, Leila da Costa

Brazilian Political Science Review

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2024, Volume 18 N. 1 elocation e0008

Abstract: En | Text: En | PDF: En

This article analyzes how Nature-based Solutions are integrated into the urban agenda in Brazilian cities. We sought to understand the co-benefits of those strategies, the main facilitators, their potentials and limitations. This article fills in the gaps of the research on Nature-based Solutions through a political science approach, providing more elements to analyze climate governance in the urban context and is based on the experiences in the Brazilian context. We analyzed two cases in depth, namely the cities of Campinas and Santos. We analyzed official government documents and attended events and meetings that took place between local governments and partner institutions. The results showed that Nature-based Solutions are being integrated into urban planning and development through existing sectoral policies and the regulation of specific policies. Specific institutional arrangements directed towards the challenges of environmental change were important facilitators of the strategies in both cities, driven mainly by the participation of local governments in projects led by cooperation networks of municipalities and international cooperation agencies. We verified a potential for social innovation based on the inclusion of gender issues, the involvement of vulnerable social groups in the planning of actions and a greater understanding of ecosystem services and the co-benefits of NbS, mainly by public managers. The strategies have the potential to be replicated, which generates social learning. There are knowledge gaps regarding the co-benefits of the analyzed strategies, as well as the generated impacts. Naturebased Nature cobenefits co benefits limitations approach depth Santos institutions agencies issues NbS managers replicated learning impacts

https://doi.org/10.1590/1981-3821202400010004

12.

Analysis of peri-implant bone tissue between hydrophilic and rough implant surfaces in spontaneously hypertensive rats treated with losartan periimplant peri
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SANTOS, Jaqueline Silva dos

; MULINARI-SANTOS, Gabriel

; DE SOUZA BATISTA, Fábio Roberto

; GOMES-FERREIRA, Pedro Henrique Silva

; PALIN, Letícia Pitol

; ANTONIALI, Cristina

; OKAMOTO, Roberta

Journal of Applied Oral Science

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2024, Volume 32 elocation e20230374

Abstract: En | Text: En | PDF: En

Abstract Hypertensive individuals present alterations in their calcium metabolism that consequently decrease the concentration of this mineral in the bone tissue. Objectives to evaluate the morphological and functional characteristics of the peri-implant bone tissue that was formed during the healing process by the placement implants using two different surface treatments: hydrophilic Acqua™ (ACQ) and rough NeoPoros™ (NEO), in spontaneously hypertensive (SHR) and normotensive rats (Wistar) whether or not treated with losartan. Methodology In total, 96 male rats (48 Wistar and 48 SHR) were divided into eight subgroups: absolute control rough (COA NEO), absolute control hydrophilic (COA ACQ), losartan control rough (COL NEO), losartan control hydrophilic (COL ACQ), SHR absolute rough (SHR NEO), SHR absolute hydrophilic (SHR ACQ), SHR losartan rough (SHRL NEO), and SHR losartan hydrophilic (SHRL ACQ). The rats medicated with losartan received daily doses of the medication. NeoPoros™ and Acqua™ implants were installed in the tibiae of the rats. After 14 and 42 days of the surgery, the fluorochromes calcein and alizarin were injected in the rats. The animals were euthanized 67 days after treatment. The collected samples were analyzed by immunohistochemistry, biomechanics, microcomputerized tomography, and laser confocal scanning microscopy analysis. Results The osteocalcin (OC) and vascular endothelium growth factor (VEGF) proteins had moderate expression in the SHRL ACQ subgroup. The same subgroup also had the highest implant removal torque. Regarding microarchitectural characteristics, a greater number of trabeculae was noted in the control animals that were treated with losartan. In the bone mineralization activity, it was observed that the Acqua™ surface triggered higher values of MAR (mineral apposition rate) in the COA, COL, and SHRL groups (p<0.05). Conclusion the two implant surface types showed similar responses regarding the characteristics of the peri-implant bone tissue, even though the ACQ surface seems to improve the early stages of osseointegration. periimplant peri treatments Acqua (ACQ NeoPoros NEO, NEO , (NEO) (Wistar total 9 (4 4 subgroups COA NEO) ACQ, ACQ) COL ACQ. . medication 1 surgery 6 treatment immunohistochemistry biomechanics tomography analysis OC (OC VEGF (VEGF torque activity rate p<0.05. p005 p p<0.05 0 05 (p<0.05) osseointegration (NEO ( p00 p<0.0 (p<0.05 p0 p<0. (p<0.0 p<0 (p<0. p< (p<0 (p< (p

https://doi.org/10.1590/1678-7757-2023-0374

13.

COVID-19 pandemic and suicidal behavior in adults: systematic review of observational studies COVID19 COVID 19 COVID-1 adults COVID1 1 COVID-
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Miranda, Priscilla Ingrid Gomes

; Silva Júnior, Fernando José Guedes da

; Sales, Jaqueline Carvalho e Silva

; Parente, Adriana da Cunha Menezes

; Costa, Ana Paula Cardoso

; Monteiro, Claudete Ferreira de Souza

Revista Gaúcha de Enfermagem

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2024, Volume 45 elocation e20230195

Abstract: En Pt Es | Text: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT Objective: To analyze the scientific evidence on the impact of the COVID-19 pandemic on suicidal behavior in adults. Method: Systematic review, conducted from June to October 2022, in the following databases: MEDLINE/PubMed, Virtual Health Library, Excerpta Medica database, Cumulative Index to Nursing and Allied Health Literature, Latin American and Caribbean Health Sciences Literature, PsycINFO, Web of Science, Scopus, Science Direct and Google Scholar. The selection, data extraction and assessment of methodological quality were carried out using the Methodological Index for Non-randomized Studies tool. Considering that most of the studies evaluated had significant methodological differences, it was decided to carry out a qualitative synthesis of the data. Results: A total of 2112 articles were found, from which eight articles were selected that analyzed the impact of the COVID-19 pandemic on suicidal behavior in adults. Conclusion: The COVID-19 pandemic has influenced the suicidal behavior in adults worldwide, especially when related to race, gender, age, religion, socioeconomic, family and legal issues, and pre-existing mental disorders, leading to a greater propensity for suicidal act. Objective COVID19 COVID 19 COVID-1 Method review 2022 databases MEDLINEPubMed MEDLINE PubMed MEDLINE/PubMed Library database Literature PsycINFO Scopus Scholar selection Nonrandomized Non randomized tool differences Results 211 found Conclusion worldwide race gender age religion socioeconomic issues preexisting pre existing disorders act COVID1 1 COVID- 202 21 20 2

RESUMO Objetivo: Analisar as evidências científicas sobre impacto da pandemia da COVID-19 no comportamento suicida de pessoas adultas. Método: Revisão sistemática, realizada de junho a outubro de 2022, nas bases de dados: MEDLINE/PubMed, Biblioteca Virtual em Saúde, Excerpta Medica database, Cumulative Index to Nursingand Allied Health Literature, Literatura Latino-Americana e do Caribe em Ciências da Saúde, PsycINFO, Web of Science, Scopus, Science Direct e Google Scholar. A seleção, a extração dos dados e a avaliação da qualidade metodológica, por meio da ferramenta Methodological Index for Non-randomized Studies, foram realizadas. Considerando que a maioria dos estudos avaliados apresentaram diferenças metodológicas significativas, optou-se por realizar síntese qualitativa dos dados. Resultados: Foram encontrados 2112 artigos, dos quais foram selecionados oito artigos que analisaram o impacto da pandemia da COVID-19 no comportamento suicida de pessoas adultas. Conclusão: A pandemia da COVID-19 influenciou no comportamento suicida de pessoas adultas no mundo, em especial, quando relacionada a raça, gênero, idade, religião, problemas socioeconômicos, familiares, legais e a transtornos mentais pré-existentes, o que ocasionava maior propensão ao ato. Objetivo COVID19 COVID 19 COVID-1 Método sistemática 2022 MEDLINEPubMed MEDLINE PubMed MEDLINE/PubMed Saúde database Literature LatinoAmericana Latino Americana PsycINFO Scopus Scholar seleção metodológica Nonrandomized Non randomized Studies realizadas significativas optouse optou se Resultados 211 Conclusão mundo especial raça gênero idade religião socioeconômicos familiares préexistentes, préexistentes pré existentes, existentes pré-existentes ato COVID1 1 COVID- 202 21 20 2

RESUMEN Objetivo: Analizar la evidencia científica sobre el impacto de la pandemia de COVID-19 en la conducta suicida en adultos. Método: Revisión sistemática, realizada de junio a octubre de 2022, en las siguientes bases de datos: MEDLINE/PubMed, Virtual Health Library, Excerpta Medica database, CumulativeIndex to Nursing and Allied Health Literature, Latin American and Caribbean Health Sciences Literature, PsycINFO, Web of Science, Scopus, Science Direct y Google Scholar. Los datos fueron seleccionados, extraídos y la calidad metodológica evaluada utilizando la herramienta Methodological Index for Non-randomised Studies. Teniendo en cuenta que la mayoría de los estudios evaluados presentaban diferencias metodológicas significativas, se decidió realizar una síntesis cualitativa de los datos. Resultados: Se encontraron 2112 artículos, de los cuales se seleccionaron 8 artículos que analizaban el impacto de la pandemia COVID-19 sobre el comportamiento suicida en adultos. Conclusión: La pandemia del COVID-19 ha influido en el comportamiento suicida de adultos de todo el mundo, especialmente cuando se relaciona con la raza, el sexo, la edad, la religión, los problemas socioeconómicos, familiares y legales y los trastornos mentales preexistentes, lo que ha provocado una mayor propensión al suicidio. Objetivo COVID19 COVID 19 COVID-1 Método sistemática 2022 MEDLINEPubMed MEDLINE PubMed MEDLINE/PubMed Library database Literature PsycINFO Scopus Scholar seleccionados Nonrandomised Non randomised Studies significativas Resultados 211 Conclusión mundo raza sexo edad religión socioeconómicos preexistentes suicidio COVID1 1 COVID- 202 21 20 2

https://doi.org/10.1590/1983-1447.2024.20230195.en

14.

Do thrips (Insecta: Thysanoptera) cause economic damage to Hancornia speciosa Gomes fruits? Insecta (Insecta Thysanoptera fruits
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Silva, Jéssica Ferreira

; Pereira, Jaqueline Magalhães

; Lima, Élison Fabrício Bezerra

; Rocha, Charlles Brandão Silva

; Peres, André Júnio Andrade

Revista Brasileira de Entomologia

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2024, Volume 68 N. 2 elocation e20230100

Abstract: En | Text: En | PDF: En

ABSTRACT The mangaba Hancornia speciosa Gomes (Apocynaceae) is more commercially viable than other native Cerrado fruit trees due to its nutritional properties and high production of fruit used in food products. Although thrips have been reported injuring mangaba, the identification of possible species of economic importance is not yet available. Thus, identifying species that may threaten mangaba plant health is a vital step in implementing management strategies. The aim of this present study was to survey thrips species during the reproductive stage of H. speciosa, determine the variety most susceptible to damage caused by these insects and to check whether the damage is economically important to this fruit tree. Thrips were collected from the ex-situ germplasm of the Agronomy School of the Federal University of Goiás, in Goiás state, Brazil. Twelve plants of three H. speciosa varieties (gardneri, cuyabensis and pubescens) were selected, from which 20 flowers and 20 fruits were assessed for the presence of thrips in September 2018 and 2019. A total of 1,306 thrips representing 13 species were collected from flowers. Of these, Frankliniella gemina was the most abundant. On the fruits, circular lesions were observed, initially as white spots that subsequently turned silver, possibly caused by Heliothrips longisensibilis. These injuries are superficial, rarely compromising large portions of the fruit, and do not cause economic damage. Therefore, thrips are not a primary threat to fruit production for fresh consumption or processing. Apocynaceae (Apocynaceae products available Thus strategies H tree exsitu ex situ state Brazil gardneri, gardneri (gardneri pubescens selected 2 201 2019 1306 1 306 1,30 abundant observed silver longisensibilis superficial Therefore processing 130 30 1,3 3 1,

https://doi.org/10.1590/1806-9665-rbent-2023-0100

15.

Detached epithelial cell plugs from the upper respiratory tract favour distal lung injury in Golden Syrian hamsters (Mesocricetus auratus) when experimentally infected with the A.2 Brazilian SARS-CoV-2 strain Mesocricetus auratus A2 A 2 A. SARSCoV2 SARSCoV SARS CoV SARS-CoV- SARS-CoV
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Pelajo-Machado, Marcelo

; da Silva, Alexandre dos Santos

; Rodrigues, Daniela del Rosario Flores

; Paiva, Milla Bezerra

; Muller, Rodrigo

; da Costa, Luciana Jesus

; Manso, Pedro Paulo Abreu

; dos Santos, João Paulo Rodrigues

; da Silva, Emanuelle de Souza Ramalho Ferreira

; Alves, Arthur Daniel Rocha

; Oliveira, Jaqueline Mendes

; Pinto, Marcelo Alves

Memórias do Instituto Oswaldo Cruz

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2024, Volume 119 elocation e240100

Abstract: En | Text: En | PDF: En

BACKGROUND The Golden Syrian hamster (Mesocricetus auratus), Ferrets (Mustela putorius furo), and macaques have been described as useful laboratory animals naturally susceptible to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. OBJECTIVES To study the mechanism of lung injury, we describe the histopathological features of SARS-CoV-2 infection in Golden Syrian hamsters inoculated intranasally with the A.2 Brazilian strain. METHODS Hamsters were intranasally inoculated with the A.2 variant and euthanised at 3-, 5-, 10- and 15-days post-inoculation. The physical examination and body weight were recorded daily. Neutralising antibodies and viral RNA load of the respiratory tract were assessed during necropsies. FINDINGS The coronavirus disease 2019 (COVID-19) model presented body weight loss, high levels of respiratory viral RNA load, severe segmentary pneumonitis, and bronchial fistula besides lymphatic trapping and infiltration, like the human SARS-COV-2 pathogenesis. The presence of subepithelial lymphoeosinophilic infiltrate was highlighted in our results; it contributed to the detachment of SARS-CoV-2 nucleocapsid-positive epithelial cells resulting in the infectious cell plugs. MAIN CONCLUSIONS The SARS-CoV-2 caused segmentary pneumonia and vascular damage. In our comprehension, the infectious cell plugs, as being aspirated from the upper respiratory tract into the terminal bronchial lumen, work as a “Trojan horse”, thus contributing to the dissemination of the SARS-CoV-2 infection into specific regions of the deep lung parenchyma. Mesocricetus auratus, auratus , auratus) Mustela furo, furo furo) SARSCoV2 SARSCoV SARS CoV (SARS-CoV-2 injury SARS-CoV- A2 A A. strain 3, 3 3- 5, 5 5- 10 15days days 15 postinoculation. postinoculation post inoculation. inoculation post-inoculation daily necropsies 201 COVID19 COVID 19 (COVID-19 loss pneumonitis infiltration SARSCOV2 SARSCOV COV SARS-COV- pathogenesis results nucleocapsidpositive nucleocapsid positive plugs damage comprehension lumen Trojan horse, horse horse” parenchyma (SARS-CoV- SARS-CoV 1 20 COVID1 (COVID-1 SARS-COV (SARS-CoV (COVID- (COVID

https://doi.org/10.1590/0074-02760240100

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