ABSTRACT Sporotrichosis is a neglected mycosis that affects human and animal hosts, including domestic cats. In Brazil, its most frequently diagnosed etiological agent is Sporothrix brasiliensis. Zoonotic transmission of S. brasiliensis occurs via direct contact between an infected cat and a susceptible human host. Notification of confirmed cases of feline sporotrichosis is not mandatory in Brazil. The metropolitan area of Goiania city can be considered a silent area for the occurrence of feline sporotrichosis. In this context, voluntary reporting of feline sporotrichosis cases is recommended for all healthcare professionals. This study aimed to report the first occurrence of S. brasiliensis in a cat from the metropolitan area of Goiania city. Cytopathology, mycology, thermal dimorphism and calmodulin gene amplification tests were performed. The mycological and molecular biological diagnoses corresponded to S. brasiliensis. The etiological agent of zoonotic sporotrichosis was detected in the metropolitan area of Goiania city, and therefore there is a risk of the emergence of new cases of cats infected with S. brasiliensis and the occurrence of zoonotic transmission of this fungus. hosts Brazil S host context professionals Cytopathology mycology performed fungus

ABSTRACT The worldwide monkeypox (mpox) outbreak in 2022 showed a high frequency of sexually transmitted infections (STI). A cross-sectional study was carried out using secondary data from the Brazilian official mpox surveillance systems. A total of 10,169 mpox cases were identified, with a median age of 32 years. Among them, 92.3% were male at birth and 57.5% were men who have sex with other men (MSM). Approximately 11% were diagnosed with STI, including 5.8% with syphilis and 2.5% with genital herpes. Individuals aged from 25 to 34 years, MSM, individuals with HIV-positive status, and those manifesting skin eruptions or penile edema were associated with STI. Laboratory investigation for mpox must be implemented as a priority in STI clinics (especially for MSM) to mitigate neglected cases, ensure appropriate treatments, and prevent misdiagnoses. (mpox 202 . (STI) crosssectional cross sectional systems 10169 10 169 10,16 identified 3 years them 923 92 92.3 575 57 5 57.5 MSM. MSM (MSM) 11 58 8 5.8 2 2.5 herpes HIVpositive HIV positive status especially treatments misdiagnoses 20 (STI 1016 1 16 10,1 9 92. 57. (MSM 5. 2. 101 10,

ABSTRACT Hematopoietic stem cell transplant (HSCT) recipients are at -increased risk for severe COVID-19. The aim of this study was to evaluate the burden of COVID-19 in a cohort of HSCT recipients. This retrospective study evaluated a cohort of adult hospitalized HSCT recipients diagnosed with COVID-19 in two large hospitals in São Paulo, Brazil post-HSCT, from January 2020 to June 2022. The primary outcome was all-cause mortality. Of 49 cases, 63.2% were male with a median age of 47 years. Allogeneic-HSCT (51.2%) and autologous-HSCT (48.9%) patients were included. The median time from HSCT to COVID-19 diagnosis was 398 days (IQR: 1211-134), with 22 (44.8%) cases occurring within 12 months of transplantation. Most cases occurred during the first year of the pandemic, in non-vaccinated patients (n=35; 71.4%). Most patients developed severe (24.4%) or critical (40.8%) disease; 67.3% received some medication for COVID-19, primarily corticosteroids (53.0%). The probable invasive aspergillosis prevalence was 10.2%. All-cause mortality was 40.8%, 51.4% in non-vaccinated patients and 14.2% in patients who received at least one dose of the vaccine. In the multiple regression analyses, the variables mechanical ventilation (OR: 101.01; 95% CI: 8.205 – 1,242.93; p = 0.003) and chest CT involvement at diagnosis ≥50% (OR: 26.61; 95% CI: 1.06 – 664.26; p = 0.04) remained associated with all-cause mortality. Thus, HSCT recipients with COVID-19 experienced high mortality, highlighting the need for full vaccination and infection prevention measures. (HSCT increased COVID19. COVID19 COVID 19. 19 COVID-1 Paulo postHSCT, postHSCT post HSCT, post-HSCT 202 2022 allcause all cause 4 632 63 2 63.2 years AllogeneicHSCT Allogeneic 51.2% 512 51 (51.2% autologousHSCT autologous 48.9% 489 48 9 (48.9% included 39 IQR (IQR 1211134, 1211134 1211 134 , 1211-134) 44.8% 448 44 8 (44.8% 1 transplantation pandemic nonvaccinated non vaccinated n=35 n35 n 35 (n=35 71.4%. 714 71.4% . 71 71.4%) 24.4% 244 24 (24.4% 40.8% 408 40 (40.8% disease 673 67 3 67.3 COVID19, 19, 53.0%. 530 53.0% 53 0 (53.0%) 102 10 10.2% Allcause All 514 51.4 142 14 14.2 vaccine analyses OR (OR 101.01 10101 101 01 95 CI 8205 205 8.20 1,242.93 124293 242 93 0.003 0003 003 50 ≥50 26.61 2661 26 61 106 06 1.0 664.26 66426 664 0.04 004 04 Thus measures COVID1 COVID- 20 6 63. 51.2 5 (51.2 48.9 (48.9 121113 121 13 1211-134 44.8 (44.8 n=3 n3 (n=3 71.4 7 24.4 (24.4 40.8 (40.8 67. 53.0 (53.0% 10.2 51. 14. 101.0 1010 820 8.2 1,242.9 12429 0.00 000 00 ≥5 26.6 266 1. 664.2 6642 66 0.0 (51. 48. (48. 12111 1211-13 44. (44. n= (n= 71. 24. (24. 40. (40. 53. (53.0 10. 101. 82 8. 1,242. 1242 ≥ 26. 664. 0. (51 (48 1211-1 (44 (n (24 (40 (53. 1,242 124 (5 (4 1211- (2 (53 1,24 ( 1,2 1,

ABSTRACT Respiratory syncytial virus (RSV) is a common cause of respiratory infections. It is responsible for more than half of lower respiratory tract infections in infants requiring hospitalization. This study aimed to investigate the correlation between the fibrinogen–albumin ratio (FAR) and the severity of RSV infection and to compare its effectiveness with the neutrophil–lymphocyte ratio (NLR). This was a retrospective cohort study with patients aged from 29 days to two years who had been admitted to the pediatric clinic of our hospital. Patients were divided into four groups: group 1 (mild disease), group 2 (moderate disease), group 3 (severe disease), and group 4 (control). FAR and NLR were measured in all groups. FAR was significantly higher in group 3 than in the other groups, in group 2 than in groups 1 and 4, and in group 1 than in group 4 (p<0.001 for all). NLR was significantly higher in group 4 than in the other groups and in group 3 than in groups 1 and 2 (p<0.001 for all). FAR totaled 0.078 ± 0.013 in patients with bronchiolitis; 0.099 ± 0.028, in patients with bronchopneumonia; and 0.126 ± 0.036, in patients with lobar pneumonia, all with statistically significant differences (p<0.001). NLR showed no significant statistical differences. This study found a statistically significant increase in FAR in the group receiving invasive support when compared to that receiving non-invasive support (0.189 ± 0.046 vs. 0.112 ± 0.030; p=0.003). Mechanical ventilation groups showed no differences for NLR. FAR was used to identify severe RSV-positive patients, with a sensitivity of 84.4%, a specificity of 82.2%, and a cutoff value of >0.068. This study determined a cutoff value of ≤1.49 for NLR, with a sensitivity of 62.2% and a specificity of 62.2% to find severe RSV-positive patients. Also, statistically significant associations were found between FAR and hospitalization and treatment length and time up to clinical improvement (p<0.001 for all). NLR and hospitalization and treatment length showed a weak association (p<0.001). In children with RSV infection, FAR could serve to determine disease severity and prognosis and average lengths of hospitalization, treatment, and clinical improvement. Additionally, FAR predicted disease severity more efficiently than NLR. (RSV fibrinogenalbumin fibrinogen albumin (FAR neutrophillymphocyte neutrophil lymphocyte . (NLR) hospital mild disease, , disease) moderate control. control (control) p<0.001 p0001 p 0 001 (p<0.00 all. all) 0078 078 0.07 0013 013 0.01 bronchiolitis 0099 099 0.09 0028 028 0.028 bronchopneumonia 0126 126 0.12 0036 036 0.036 pneumonia p<0.001. (p<0.001) noninvasive non 0.189 0189 189 (0.18 0046 046 0.04 vs 0112 112 0.11 0.030 0030 030 p=0.003. p0003 p=0.003 003 p=0.003) RSVpositive positive 844 84 84.4% 822 82 82.2% 0068 068 >0.068 149 49 ≤1.4 622 62 62.2 Also Additionally (NLR (control p<0.00 p000 00 (p<0.0 007 07 0.0 01 009 09 002 02 0.02 012 12 0.1 03 0.03 0.18 018 18 (0.1 004 04 011 11 p=0.00 8 84.4 82.2 006 06 >0.06 14 ≤1. 6 62. p<0.0 p00 (p<0. 0. (0. p=0.0 84. 82. >0.0 ≤1 p<0. p0 (p<0 (0 p=0. >0. ≤ p<0 (p< ( p=0 >0 p< (p p= >

ABSTRACT Quilombo remnant communities are areas officially recognized by the Brazilian government as historical communities founded by formerly enslaved individuals. These communities are mostly located in the endemic areas of malaria in the Brazilian Amazon. We retrospectively described the prevalence of malaria among individuals living in 32 recognized quilombo remnant communities in the Baiao and Oriximina municipalities located in the Para State. The number of malaria cases and the Annual Parasitic Incidence (API) recorded by the Brazilian malaria surveillance system (SIVEP-Malaria) from January 2005 to December 2020 were analyzed. We found that all communities registered at least one case over the 16-year period, the most frequent parasitic species being Plasmodium vivax (76.1%). During this period, 0.44% (4,470/1,008,714) of the malaria cases registered in Para State were reported in these quilombo remnant communities, with frequencies of 10.9% (856/7,859) in Baiao municipality and 39.1% (3,614/9,238) in Oriximina municipality, showing that individuals living in these rural communities are exposed to malaria. These data indicate that effective surveillance requires improved measures to identify malaria transmission among vulnerable populations living in quilombo remnant communities in the Brazilian Amazon. Amazon 3 API (API SIVEPMalaria SIVEP Malaria (SIVEP-Malaria 200 202 analyzed 16year year 16 period 76.1%. 761 76.1% . 76 1 (76.1%) 044 0 44 0.44 4,470/1,008,714 44701008714 4 470 008 714 (4,470/1,008,714 109 10 9 10.9 856/7,859 8567859 856 7 859 (856/7,859 391 39 39.1 3,614/9,238 36149238 614 238 (3,614/9,238 20 76.1 (76.1% 04 0.4 4,470/1,008,71 4470100871 47 00 71 (4,470/1,008,71 10. 856/7,85 856785 85 (856/7,85 39. 3,614/9,23 3614923 61 23 (3,614/9,23 2 76. (76.1 0. 4,470/1,008,7 447010087 (4,470/1,008,7 856/7,8 85678 8 (856/7,8 3,614/9,2 361492 6 (3,614/9,2 (76. 4,470/1,008, 44701008 (4,470/1,008, 856/7, 8567 (856/7, 3,614/9, 36149 (3,614/9, (76 4,470/1,008 4470100 (4,470/1,008 856/7 (856/7 3,614/9 3614 (3,614/9 (7 4,470/1,00 447010 (4,470/1,00 856/ (856/ 3,614/ 361 (3,614/ ( 4,470/1,0 44701 (4,470/1,0 (856 3,614 36 (3,614 4,470/1, 4470 (4,470/1, (85 3,61 (3,61 4,470/1 447 (4,470/1 (8 3,6 (3,6 4,470/ (4,470/ 3, (3, 4,470 (4,470 (3 4,47 (4,47 4,4 (4,4 4, (4, (4

ABSTRACT Noroviruses are highly infectious, genetically diverse viruses. Global outbreaks occur frequently, making molecular surveillance important for infection monitoring. This cross-sectional descriptive study aimed to monitor cases of norovirus gastroenteritis in the Brazilian Amazon. Fecal samples were tested by immunoenzymatic assay, RT-PCR and genetic sequencing for the ORF1/ORF2 and protease regions. Bayesian inference with a molecular clock was employed to construct the phylogeny. The norovirus prevalence was 25.8%, with a higher positivity rate among children aged 0-24 months. Genogroup GII accounted for 98.1% of the sequenced samples, while GI accounted for 1.9% of them. The GII.P16/GII.4 genotype was the most prevalent, with an evolution rate of 2.87x10−3 and TMRCA estimated in 2012. This study demonstrates that norovirus is a primary causative agent of gastroenteritis and provides data on viral genetic diversity that may facilitate infection surveillance and vaccine development. infectious viruses frequently monitoring crosssectional cross sectional Amazon assay RTPCR RT PCR ORF1ORF2 ORFORF ORF1 ORF2 ORF ORF1/ORF regions phylogeny 258 25 8 25.8% 024 0 24 0-2 months 981 98 1 98.1 19 9 1.9 them GIIP16GII4 GIIPGII P16 4 P GII.P16/GII. prevalent 287x103 x 2 87x10 3 2.87x10− 2012 development ORF1ORF 25.8 02 0- 98. 1. GIIP GIIP16GII P1 GII.P16/GII 287x10 87x1 2.87x10 201 25. 287x1 87x 2.87x1 20 287x 2.87x

ABSTRACT Conditions related to the acquired immune deficiency syndrome (AIDS) are still a significant cause of morbidity and mortality among people living with HIV (PLHIV). Longer survival in this population were reported to increase the risk of developing noncommunicable chronic diseases (NCDs). This study aimed to estimate the survival and causes of death according to age group and sex among PLHIV monitored at two referral centers in the Northeastern Brazil. This is a prospective, retrospective cohort with death records from 2007 to 2018, based on a database that registers causes of death using the International Classification of Disease (ICD-10), which were subsequently coded following the Coding Causes of Death in HIV (CoDe). A total of 2,359 PLHIV participated in the study, with 63.2% being men, with a follow-up period of 13.9 years. Annual mortality rate was 1.46 deaths per 100 PLHIV (95% CI: 1.33 – 1.60) with a frequency of 20.9%. Risk of death for men increased by 49% when compared to women, and the risk of death in PLHIV increased by 51% among those aged 50 years and over at the time of diagnosis. It was observed that 73.5% accounted for AIDS-related deaths, 6.9% for non-AIDS defining cancer, 6.3% for external causes, and 3.2% for cardiovascular diseases. Among the youngest, 97.2% presented an AIDS-related cause of death. Highest frequency of deaths from neoplasms was among women and from external causes among men. There is a need for health services to implement strategies ensuring greater adherence to treatment, especially among men and young people. Moreover, screening for chronic diseases and cancer is essential, including the establishment of easily accessible multidisciplinary care centers that can identify and address habits such as illicit drug use and alcoholism, which are associated with violent deaths. AIDS (AIDS PLHIV. . (PLHIV) NCDs. NCDs (NCDs) Brazil prospective 200 2018 ICD10, ICD10 ICD 10 , (ICD-10) CoDe. CoDe (CoDe) 2359 2 359 2,35 632 63 63.2 followup follow up 139 13 9 13. 146 1 46 1.4 95% 95 (95 CI 133 33 1.3 1.60 160 60 209 20 20.9% 49 51 5 diagnosis 735 73 73.5 AIDSrelated 69 6 6.9 nonAIDS non 3 6.3 32 3.2 youngest 972 97 97.2 treatment Moreover essential alcoholism (PLHIV (NCDs 201 ICD1 (ICD-10 (CoDe 235 35 2,3 63. 14 4 1. (9 1.6 16 20.9 7 73. 6. 3. 97. (ICD-1 23 2, ( 20. (ICD- (ICD

ABSTRACT Maternal and child health remains an enduring global challenge, having occupied a prominent position on international agendas since the dawn of the 21st century. During pregnancy, syphilis emerges as the second most prevalent cause of stillbirth on a global scale, potentially leading to a range of adverse outcomes. This study aimed to describe the clinical and epidemiological profile of cases of gestational and congenital syphilis and the hospital care provided for newborns in Campo Grande municipality, Mato Grosso do Sul State, Brazil, from 2013 to 2018. This is a cross-sectional study based on data from Brazilian Notifiable Diseases Surveillance System (SINAN) and hospital medical records. Chi-square or Fisher’s exact test and logistic regression analysis were used to assess the associations and relationships between the child’s clinical outcome at birth and the mother’s clinical-obstetric and epidemiological characteristics. Cumulative detection rate of gestational syphilis was 174.3 cases per 1,000 live births and cumulative incidence of congenital syphilis was 47.7 cases per 1,000 live births. Alcoholism, prenatal care, number of prenatal visits, maternal treatment regimen, and timing of maternal diagnosis were associated with child’s clinical outcome at birth and considered in the regression model. Prenatal visits showed a protective effect against the signs and symptoms of congenital syphilis (odds ratio = 0.37; 95% confidence interval = 0.17−0.77). Medical assistance was considered inadequate in 62.3% of cases. Prenatal consultations should be encouraged among pregnant women. There is a need for better education of health personnel on the treatment and diagnosis of syphilis. challenge st century pregnancy scale outcomes municipality State Brazil 201 2018 crosssectional cross sectional SINAN (SINAN records Chisquare Chi square Fishers Fisher s childs mothers mother clinicalobstetric obstetric characteristics 1743 174 3 174. 1000 1 000 1,00 477 47 7 47. Alcoholism regimen model odds 0.37 037 0 37 95 0.17−0.77. 017077 0.17−0.77 . 17 77 0.17−0.77) 623 62 62.3 women 20 100 00 1,0 4 0.3 03 9 01707 0.17−0.7 6 62. 2 10 1, 0. 0170 0.17−0. 017 0.17−0 01 0.17− 0.17 0.1

ABSTRACT Neonatal sepsis leads to severe morbidity and occasionally death among neonates within the first week following birth, particularly in low- and middle-income countries. Empirical therapy includes antibiotics recommended by WHO. However, these have been ineffective against antimicrobial multidrug-resistant bacterial strains such as Klebsiella spp, Escherichia coli, and Staphylococcus aureus species. To counter this problem, new molecules and alternative sources of compounds with antibacterial activity are sought as options. Actinobacteria, particularly pathogenic strains, have revealed a biotechnological potential still underexplored. This study aimed to determine the presence of biosynthetic gene clusters and the antimicrobial activity of actinobacterial strains isolated from clinical cases against multidrug-resistant bacteria implicated in neonatal sepsis. In total, 15 strains isolated from clinical cases of actinomycetoma were used. PCR screening for the PKS-I, PKS-II, NRPS-I, and NRPS-II biosynthetic systems determined their secondary metabolite-producing potential. The strains were subsequently assayed for antimicrobial activity by the perpendicular cross streak method against Escherichia fergusonii Sec 23, Klebsiella pneumoniae subsp. pneumoniae H1064, Klebsiella variicola H776, Klebsiella oxytoca H793, and Klebsiella pneumoniae subsp. ozaenae H7595, previously classified as multidrug-resistant. Finally, the strains were identified by 16S rRNA gene sequence analysis. It was found that 100% of the actinobacteria had biosynthetic systems. The most frequent biosynthetic system was NRPS-I (100%), and the most frequent combination was NRPS-I and PKS-II (27%). All 15 strains showed antimicrobial activity. The strain with the highest antimicrobial activity was Streptomyces albus 94.1572, as it inhibited the growth of the five multidrug-resistant bacteria evaluated. birth low middleincome middle income countries WHO However multidrugresistant multidrug resistant spp coli species problem options Actinobacteria underexplored total 1 used PKSI, PKSI PKS I, I PKS-I PKSII, PKSII II, II NRPSI, NRPSI NRPS NRPSII metaboliteproducing metabolite producing 23 subsp H1064 H H776 H793 H7595 multidrugresistant. resistant. Finally S analysis 100 100%, , (100%) 27%. 27 27% . (27%) 941572 94 1572 94.1572 evaluated 2 H106 H77 H79 H759 10 (100% (27% 94157 9 157 94.157 H10 H7 H75 (100 (27 9415 94.15 H1 (10 (2 941 94.1 (1 ( 94.

ABSTRACT Hepatic injuries in COVID-19 are not yet fully understood and indirect pathways (without viral replication in the liver) have been associated with the activation of vascular mechanisms of liver injury in humans infected with SARS-CoV-2. Golden Syrian hamsters are an effective model for experimental reproduction of moderate and self-limiting lung disease during SARS-CoV-2 infection. As observed in humans, this experimental model reproduces lesions of bronchointerstitial pneumonia and pulmonary vascular lesions, including endotheliitis (attachment of lymphoid cells to the luminal surface of endothelium). Extrapulmonary vascular lesions are well documented in COVID-19, but such extrapulmonary vascular lesions have not yet been described in the Golden Syrian hamster model of SARS-CoV-2 infection. The study aimed to evaluate microscopic liver lesions in Golden Syrian hamsters experimentally infected with SARS-CoV-2. In total, 38 conventional Golden Syrian hamsters, divided into infected group (n=24) and mock-infected group (n=14), were euthanized at 2-, 3-, 4-, 5-, 7-, 14-, and 15-days post infection with SARS-CoV-2. Liver fragments were evaluated by histopathology and immunohistochemical detection of SARS-CoV-2 Spike S2 antigens. The frequencies of portal vein endotheliitis, lobular activity, hepatocellular degeneration, and lobular vascular changes were higher among SARS-CoV-2-infected animals. Spike S2 antigen was not detected in liver. The main results indicate that SARS-CoV-2 infection exacerbated vascular and inflammatory lesions in the liver of hamsters with pre-existing hepatitis of unknown origin. A potential application of this animal model in studies of the pathogenesis and evolution of liver lesions associated with SARS-CoV-2 infection still needs further evaluation. COVID19 COVID 19 COVID-1 without SARSCoV2. SARSCoV2 SARSCoV SARS CoV 2. 2 selflimiting self limiting SARS-CoV- attachment endothelium. endothelium . endothelium) COVID19, 19, total 3 n=24 n24 n 24 (n=24 mockinfected mock n=14, n14 n=14 , 14 (n=14) 2, 2- 3, 3- 4, 4 4- 5, 5 5- 7, 7 7- 14, 14- 15days days 15 S antigens activity degeneration SARSCoV2infected SARSCoVinfected animals preexisting pre existing origin evaluation COVID1 1 COVID- SARS-CoV n=2 n2 (n=2 n1 n=1 (n=14 n= (n= (n=1 (n

ABSTRACT The main social impact of toxoplasmosis stems from its ability to be vertically transmitted. Postnatally acquired infection is generally asymptomatic in approximately 70–90% of cases, making diagnosis often dependent on laboratory tests using serological methods to search for anti-T. gondii antibodies. This study aimed to investigate the ability of the VIDAS TOXO IgG avidity and VIDAS TOXO IgM assays to confirm recent toxoplasmosis. In total, 341 pregnant women with suspected acute toxoplasmosis were systematically monitored in the Program for Control of Congenital Toxoplasmosis in Minas Gerais State, Brazil. We conducted an observational analytical-descriptive cross-sectional study and grouped according to clinical and laboratory criteria as having acute or chronic toxoplasmosis. The VIDAS TOXO IgG avidity and VIDAS TOXO IgM assays were evaluated to investigate the capacity to identify acute infection. IgG avidity showed good performance in identifying acute toxoplasmosis when the IgG avidity index was lower than or equal to 0.1. Values greater than or equal to 3.16 according to the TOXO IgM kit were associated with a greater chance of acute infection. These results may contribute to a more adequate diagnosis of acute gestational toxoplasmosis and, consequently, the avoidance of inadequate or unnecessary treatments. transmitted 7090 70 90 70–90 cases antiT. antiT anti T. T anti-T antibodies total 34 State Brazil analyticaldescriptive analytical descriptive crosssectional cross sectional 01 0 1 0.1 316 3 16 3.1 consequently treatments 709 7 9 70–9 0. 31 3. 70–

ABSTRACT Stenotrophomonas maltophilia was considered to be a low-virulence organism. But it has emerged as a prominent opportunistic pathogen in patients with certain risk factors. This study aimed to describe an outbreak experienced in our hospital with all dynamics while evaluating previous S. maltophilia outbreak reports. S. maltophilia isolates were obtained from a university hospital in Türkiye in a seven-months period. Antimicrobial resistance, type of infections, predisposing factors of infected patients, antibiotic therapy, outcome of infections, and outbreak source were investigated. Also, S. maltophilia outbreaks in the literature were reviewed. In the 12 months prior to the outbreak, prevalence rate of clinical samples including S. maltophilia was 7/1,000 patient per day, opposed to 113/1,000 patient per day during the outbreak. Although a large number of cases were observed in a short seven-month period, a source of contamination could not be detected. Stable mortality rates (or remaining close to the average) during outbreaks can be attributed to the careful attention paid by laboratory and clinic physicians during procedures. S. maltophilia has potential to spread outbreaks and infect patients in operating rooms and intensive care units during invasive procedures. lowvirulence low virulence organism S reports sevenmonths seven period resistance infections therapy investigated Also reviewed 1 71000 7 000 7/1,00 1131000 113 113/1,00 sevenmonth month detected or average procedures 7100 00 7/1,0 113100 11 113/1,0 710 0 7/1, 11310 113/1, 71 7/1 1131 113/1 7/ 113/

ABSTRACT This study aimed to systematically review interventions to prevent mother-to-child transmission of HIV during breastfeeding. We conducted a systematic review and meta-analysis using specific criteria to identify randomized controlled trials that focused on pregnant and breastfeeding women living with HIV and their children from birth to 2 years of age. We extensively searched electronic databases, including Web of Science, Scopus, PubMed, MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Google Scholar up to October 24, 2023. After screening 3,110 titles and abstracts, we reviewed 306 full texts. Of these, we assessed the quality and risk of bias of fifty-five articles, ultimately identifying seven studies. Four of these studies, which focused on antiretroviral therapy (ART), were included in the meta-analysis. There was little heterogeneity in study methodology and pooled estimates. The postnatal HIV transmission rate was found to be 0.01 (95%CI: 0.00 – 0.02). Therefore, the risk of mother-to-child transmission among breastfeeding mothers with HIV was significantly lower in the intervention groups than in the placebo groups. Analysis of funnel plots and Egger’s test (p = 0.589) showed no evidence of publication bias. In addition to the four articles, two studies compared different ART regimens and one study compared the administration of high-dose vitamin A to the mother or the child. The results suggest that the use of ART significantly reduces the risk of postnatal HIV transmission compared with placebo. However, the effectiveness of different ART regimens or other therapies, including high-dose vitamin A, is unclear. mothertochild child metaanalysis meta analysis age databases Science Scopus PubMed MEDLINE EMBASE Trials 24 2023 3110 3 110 3,11 abstracts 30 texts fiftyfive fifty five articles ART, , (ART) metaanalysis. analysis. estimates 001 0 01 0.0 95%CI 95CI CI 95 (95%CI 000 00 0.02. 002 0.02 . 02 0.02) Therefore Eggers Egger s p 0.589 0589 589 highdose high dose However therapies unclear 202 311 11 3,1 (ART 0. 9 0.58 058 58 20 31 1 3, 0.5 05 5

ABSTRACT Yellow fever vaccine (YFV) is a live attenuated vaccine that can cause a mild infection in immunocompetent patients. However, it may not be self-limiting in patients with inborn errors of immunity (IEI) and may be the first and most severe presentation in these patients. A 10-month-old female infant sought emergency care presenting fever for three days and diffuse exanthema. She was a previous healthy child of consanguineous parents. The child had received YFV 28 days before the onset of symptoms. Upon hospital admission, petechial rash on the limbs and hepatosplenomegaly were noted on physical exam. Laboratory tests showed thrombocytopenia, increased serum aminotransferases and elevated gamma-glutamyl transferase (GGT) and alkaline phosphatase levels. During hospitalization she developed hypoactivity, drowsiness, and hypotonia. The possibility of viscerotropic and neurotropic vaccine associated disease was suspected and a possible primary immunodeficiency disease considered. The patient was tested for antibodies against the yellow fever virus (MAC ELISA) on serum and cerebrospinal fluid (CSF) samples, showing positive IgM results. Immunophenotyping showed low levels of lymphocytes and absence of T-cell receptor excision circles (TREC), leading to diagnose of severe combined immunodeficiency disease (SCID). Despite treatment, after 35 days of hospitalization, she evolved to cardiorespiratory arrest and death. Serious adverse events after administration of the YFV are rare and associated with neurological or visceral involvement in most cases. The unfavorable outcome highlights the importance of neonatal screening for SCID and the clinical suspicion of primary immunodeficiencies in infants who have serious adverse events to live virus vaccines. (YFV However selflimiting self limiting IEI (IEI 10monthold monthold 10 month old exanthema parents 2 symptoms admission exam thrombocytopenia gammaglutamyl gamma glutamyl GGT (GGT hypoactivity drowsiness hypotonia considered MAC ELISA CSF (CSF samples results Tcell T cell TREC, TREC , (TREC) SCID. . (SCID) treatment 3 death cases vaccines 1 (TREC (SCID

ABSTRACT Waste pickers constitute a marginalized demographic engaged in the collection of refuse, facing considerable occupational hazards that heighten their susceptibility to contract infectious diseases. Moreover, waste pickers contend with societal stigmatization and encounter barriers to accessing healthcare services. To explore the viral profile of waste pickers potentially linked to their occupational environment, we conducted a metagenomic analysis on 120 plasma specimens sampled from individuals employed at the Cidade Estrutural dumpsite in Brasilia city, Brazil. In total, 60 blood donors served as a comparative control group. Specimens were pooled and subjected to Illumina NextSeq 2000 sequencing. Viral abundance among waste pickers revealed the presence of significant pathogens, including HIV, HCV, and Chikungunya, which were not detected in the control group. Additionally, elevated levels of anelloviruses and Human pegivirus-1 were noted, with a comparable incidence in the control group. These findings underscore the utility of metagenomics in identifying clinically relevant viral agents within underserved populations. The implications of this study extend to informing public health policies aimed at surveilling infectious diseases among individuals facing socioeconomic disparities and limited access to healthcare resources. refuse Moreover services environment 12 city Brazil total 6 group 200 sequencing pathogens HIV HCV Chikungunya Additionally pegivirus1 pegivirus 1 pegivirus- noted populations resources 20 2