Resumo: Este estudo analisou desafios na criação de demanda para participação em um projeto de profilaxia pré-exposição (PrEP) ao HIV em duas capitais brasileiras. Trata-se de um estudo qualitativo realizado com homens que fazem sexo com homens e mulheres transgênero de 15 a 19 anos residentes de duas capitais brasileiras. Para esta análise, foram avaliadas 27 entrevistas semiestruturadas realizadas entre 2019 e 2020 com análise temática de conteúdo reflexiva. Para os participantes, a criação de demanda por PrEP foi essencial para o processo de interação, mediação, vínculo e apego e mostrou-se eficaz para a aceitabilidade e adesão à PrEP. As narrativas dos adolescentes mostraram que as estratégias promoveram a prevenção combinada do HIV, abriram oportunidades para reuniões de recrutamento, ajudaram a negociar e convencer os indivíduos a usar a PrEP, fortaleceram a educação entre pares e evocaram um sentimento de “estar com” e “caminhar juntos”, apesar dos desafios. As interações, sejam presenciais ou online, com o uso de tecnologias sociais, desempenharam um papel crucial no recrutamento de adolescentes para o projeto, na ampliação do conhecimento sobre PrEP e demais estratégias combinadas de prevenção, e no acesso a serviços de saúde e autocuidado.

Abstract: This study aimed to analyze the challenges in demand creation for participation in an HIV pre-exposure prophylaxis (PrEP) project in two Brazilian capitals. This qualitative study was conducted with men who have sex with men and transgender women aged 15 to 19 years who lived in two Brazilian state capitals. For this analysis, 27 semi-structured interviews carried out from 2019 to 2020 were evaluated by reflexive thematic content analysis. For participants, PrEP demand creation was essential for their interaction, mediation, bonding, and attachment and proved effective for PrEP acceptability and adherence. Adolescents’ narratives showed that the strategies promoted HIV combination prevention, opened up opportunities for recruitment meetings, helped to negotiate with and convince individuals to use PrEP, strengthened peer education, and evoked a feeling of “being with” and “walking together” despite the challenges. Face-to-face or online interactions using social technologies played a crucial role in recruiting adolescents for the project, expanding knowledge on PrEP and other combination prevention strategies and access to health services and self-care.

Resumen: Este estudio analizó los desafíos para crear demanda para la participación en un proyecto de profilaxis pre-exposición (PrEP) al VIH en dos capitales brasileñas. Se trata de un estudio cualitativo realizado con hombres que tienen sexo con hombres y mujeres transgénero de 15 a 19 años residentes de dos capitales brasileñas. Para este análisis, se evaluaron 27 entrevistas semiestructuradas realizadas entre 2019 y 2020 con un análisis temático de contenido reflexivo. Para los participantes, crear la demanda por PrEP fue fundamental para el proceso de interacción, mediación, vínculo y apego y demostró ser eficaz para la aceptabilidad y adhesión de la PrEP. Los relatos de los adolescentes mostraron que las estrategias promovieron la prevención combinada del VIH, posibilitaron reuniones de reclutamiento, ayudaron a negociar y convencer a las personas a usar la PrEP, fortalecieron la educación entre pares y evocaron un sentimiento de “estar con” y “caminar juntos”, a pesar de los desafíos. Las interacciones, ya sean de manera presencial o online, con el uso de las tecnologías sociales, tuvieron un papel fundamental en el reclutamiento de adolescentes para el proyecto, en la ampliación del conocimiento sobre la PrEP y las demás estrategias de prevención combinadas, y en el acceso a servicios de salud y autocuidado.

RESUMO Objetivou-se avaliar a suplementação de selênio orgânico (Se org.) em diferentes concentrações e de selênio inorgânico (Se inorg.) nas rações de codornas sobre o desempenho; qualidade dos ovos; e tempo e condições de armazenamento. No ensaio de desempenho foram utilizadas 360 codornas com 27 semanas de idade, distribuídas em delineamento inteiramente casualizado (DIC) composto por seis tratamentos: Ração Basal; 0,15; 0,30; 0,45; e 0,60 ppm de Se org. e 0,60 ppm de Se inorg. suplementados on top à ração basal, com seis repetições e dez aves por unidade experimental. Para avaliar o tempo e condições de armazenamento foram utilizados 720 ovos de codornas distribuídos em DIC, com esquema fatorial 6x5x2 (sendo seis tratamentos provenientes do ensaio de desempenho; cinco tempos de estocagem (7, 14, 21, 28 e 35 dias); e duas formas de estocagem (refrigerada e não refrigerada), com doze repetições contendo um ovo cada. Não houve efeito na suplementação de Se org. e Se inorg. nas rações sobre desempenho e qualidade dos ovos. Houve aumento linear na concentração de Se nos ovos de codornas alimentadas com níveis crescentes deste nutriente. Houve efeito da suplementação com selênio sobre o tempo de estocagem na qualidade de ovos mantidos sob refrigeração e em temperatura ambiente. Conclui-se que a suplementação, on top, de níveis entre 0,15 e 0,60 ppm de selênio nas formas orgânica ou inorgânica, não altera o desempenho das codornas, acentuando, contudo, a deposição desse mineral nos ovos, favorecendo a manutenção da qualidade ao longo do tempo de armazenamento. Objetivouse Objetivou se org inorg 36 2 idade DIC (DIC Basal 015 0 15 0,30 030 30 0,45 045 45 060 60 0,6 basal experimental 72 xx x 6x5x sendo 7, 7 (7 14 21 3 dias dias) refrigerada refrigerada, , refrigerada) cada nutriente ambiente Concluise Conclui 0,1 inorgânica acentuando contudo 01 1 0,3 03 0,4 04 4 06 6 0, (

ABSTRACT The objective of this study was to assess the impact of supplementing quail diets with organic selenium (Se) at various concentrations and inorganic Se on performance, egg quality, and storage time under different conditions. In the performance trial, 360 quail aged 27 weeks were included in a completely randomized design comprising six treatments: Basal Diet; 0.15, 0.30, 0.45, and 0.60 ppm of organic Se; and 0.60 ppm of inorganic Se, supplemented “on top” of the basal diet. Six replications were used, each with 10 birds per experimental unit. For the evaluation of storage time and conditions, 720 quail eggs were employed in a completely randomized design. The design featured a 6×5×2 factorial arrangement consisting of six treatments derived from the performance trial, five storage times (7, 14, 21, 28, and 35 days), and two storage forms (refrigerated and non-refrigerated). Each replication contained one egg, totaling 12 replications. Results indicated no significant effect of organic or inorganic Se supplementation in the diets on performance or egg quality. However, Se concentration increased linearly in eggs from quail fed increasing levels of this nutrient. Selenium supplementation affected storage time and egg quality under refrigerated and room-temperature conditions. In conclusion, on-top Se supplementation at concentrations ranging from 0.15 to 0.60 ppm, whether in organic or inorganic forms, does not impact quail performance. Nevertheless, it leads to increased Se deposition in eggs, contributing to the maintenance of egg quality throughout the storage period. (Se conditions trial 36 2 Diet 015 0 15 030 30 0.30 045 45 0.45 060 60 0.6 top diet used 1 unit 72 652 6 5 6×5× 7, 7 (7 14 21 28 3 days, days , days) nonrefrigerated. nonrefrigerated non . non-refrigerated) However nutrient roomtemperature room temperature conclusion ontop 0.1 Nevertheless period 01 03 0.3 04 4 0.4 06 0. 65 6×5 ( non-refrigerated 6×

ABSTRACT OBJECTIVE: To evaluate whether adolescents from sexual minorities who initiated pre-exposure prophylaxis (PrEP) in community-based organizations (COs) are more socially and HIV-vulnerable compared with their counterparts from a conventional health service. In addition, to evaluate whether these adolescents had more timely access to prophylaxis METHODS: A PrEP demonstration study was conducted in the city of São Paulo in two COs, located in the center (CO-center) and the outskirts (CO-outskirts), and a conventional HIV testing service (CTA-center). Between 2020 and 2022, cisgender male adolescents who have sex with men (aMSM), transgender and gender diverse adolescents (aTTrans) aged 15 to 19 years, HIV-negative, with higher-risk practices for HIV were eligible for PrEP. Indicators of timely access and vulnerabilities of adolescents initiating PrEP in COs were analyzed using CTA-center as a reference and multinomial logistic regression. RESULTS: 608 adolescents initiated PrEP in COs and CTA-center. Adolescents from COs were associated with a shorter time to PrEP initiation (1–7 days; CO-outskirts: ORa = 2.91; 95%CI 1.22–6.92; CO-center: ORa = 1.91; 95%CI 1.10–3.31); and a lower housing Human Development Index (HDI) (CO-center: ORa = 0.97; 95%CI 0.94–1.00; CO-outskirts: ORa = 0.82; 95%CI 0.78–0.86). In CO-outskirts, there was an increased chance of adolescents being younger (ORa = 3.06; 95%CI 1.63–5.75) and living closer to the service (ORa = 0.82; 95%CI 0.78–0.86, mean 7.8 km). While adolescents from the CO-center were associated with greater prior knowledge of PrEP (ORa = 2.01; 95%CI 1.10–3.91) and high-risk perception (ORa = 2.02; 95%CI 1.18–3.44), adolescents from the COs were not associated with higher-risk sexual practices and situations of vulnerability to HIV. CONCLUSION: The provision of PrEP in the COs facilitated access for vulnerable adolescents and may contribute to reducing inequities.

RESUMO OBJETIVO: Avaliar se adolescentes de minorias sexuais que iniciaram a profilaxia pré-exposição sexual (PrEP) em organizações comunitárias (OC) apresentam maior vulnerabilidade social e ao HIV em comparação com adolescentes em PrEP de um serviço de saúde convencional. Além disso, avaliar se esses adolescentes tiveram um acesso mais oportuno à profilaxia. MÉTODOS: Estudo demonstrativo da efetividade de PrEP, realizado na cidade de São Paulo, em duas OC, localizadas no centro (OC-centro) e na periferia (OC-periferia), e em um serviço convencional de testagem para o HIV (CTA-centro). Foram elegíveis para PrEP, entre 2020 e 2022, adolescentes homens cisgêneros que fazem sexo com homens (aHSH), travestis, mulheres transexuais e pessoas transfemininas (aTTrans), de 15 a 19 anos, HIV-negativos e com práticas de maior risco para o HIV. Indicadores de acesso oportuno e de vulnerabilidades dos adolescentes iniciando PrEP nas OC foram analisados, tendo por referência o CTA-centro e empregando regressão logística multinomial. RESULTADOS: 608 adolescentes iniciaram PrEP nas OC e CTA-Centro. Adolescentes das OC estiveram associados a um menor tempo de início de PrEP (1–7 dias; OC-periferia: ORa = 2,91; IC95% 1,22–6,92; OC-centro: ORa = 1,91; IC95% 1,10–3,31); e a um menor IDH de moradia (OC-centro: ORa = 0,97; IC95% 0,94–1,00; OC-periferia: ORa = 0,82; IC95% 0,78–0,86). Na OC-periferia houve aumento na chance de os adolescentes serem mais jovens (ORa = 3,06; IC95% 1,63–5,75) e morarem mais próximos ao serviço (ORa = 0,82; IC95% 0,78–0,86, média 7,8 km). Enquanto adolescentes da OC-centro estiveram associados ao maior conhecimento prévio de PrEP (ORa = 2,01; IC95% 1,10–3,91) e a alta percepção de risco (ORa = 2,02; IC95% 1,18–3,44). Não estiveram associadas aos adolescentes das OC as práticas sexuais de maior risco e as situações de vulnerabilidade ao HIV. CONCLUSÕES: A oferta de PrEP nas OC facilitou o acesso de adolescentes vulnerabilizados e pode contribuir para reduzir inequidades.

ABSTRACT OBJECTIVE: To analyze the factors that increase the practice of condomless anal sex (CAS) among adolescent men who have sex with men (AMSM) and adolescent travestis and transgender women (ATGW) in three Brazilian state capitals. METHODS: PrEP1519 is a prospective, multicenter cohort study demonstrating the effectiveness of human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) among AMSM and ATGW aged from 15 to 19 years in three Brazilian state capitals. The analyses were performed with baseline cohort data, including 1,418 adolescents enrolled from 2019 to 2021. The outcome studied was CAS in the last six months, and the potentially associated factors were sociodemographic, behavioral, healthcare, and history of violence and discrimination. Descriptive, bivariate, and multivariate analyses were conducted. Adjusted prevalence ratios (aPRs) and 95% confidence intervals (95%CI) were estimated. RESULTS: Most of the participants were AMSM (91.5%), aged 18 to 19 years (75.9%), Black (40.5%), with secondary or higher education in progress (92.7%), with CAS during the first sexual intercourse (54.2%), sexual initiation before the age of 14 (43.4%), and history of group sex (24.6%) and transactional sex (14.6%). The prevalence of CAS in the last six months was 80.6% (95%CI 78.5%-82.6%). Adolescents who reported condomless first sexual intercourse (aPR: 1.18; 95%CI 1.10-1.25), use of psychoactive substances (aPR: 1.09; 95%CI 1.03-1.16), and transactional sex (aPR: 1.11; 95%CI 1.04-1.20) had a higher prevalence of CAS in the last six months. We also found that those aged 15 to 17 years had a higher prevalence of CAS than those aged 18 to 19 (aPR: 1.07; 95%CI 0.99-1.13). CONCLUSIONS: The prevalence of CAS was high among AMSM and ATGW, being associated with practices that may increase the risk of sexually transmitted infections (STIs). Therefore, it is recommended to strengthen sexual health programs for young people that address the issue of sexuality and STI prevention, as well as to expand access to preventive methods, such as condoms and PrEP.

RESUMO OBJETIVO: Analisar os fatores que aumentam a prática de sexo anal sem preservativo (SASP) entre adolescentes homens que fazem sexo com homens (aHSH) e travestis mulheres trans (aTrMT) em três capitais brasileiras. MÉTODOS: PrEP1519 é uma coorte prospectiva, multicêntrica, de demonstração da efetividade da profilaxia pré-exposição (PrEP) ao HIV entre aHSH e aTrMT, com idade entre 15 e 19 anos, em três capitais brasileiras. As análises foram realizadas com dados da linha de base da coorte, com a inclusão de 1.418 adolescentes inscritos de 2019 a 2021. O desfecho estudado foi SASP nos últimos seis meses, e os potenciais fatores associados foram sociodemográficos, comportamentais, de assistência à saúde e histórico de violência e discriminação. Foi realizada análise descritiva, bivariada e multivariada. Estimaram-se razões de prevalência ajustadas (RPa) e intervalos de confiança de 95% (IC95%). RESULTADOS: A maioria dos participantes era aHSH (91,5%), com idade de 18 a 19 anos (75,9%), pretos (40,5%), ensino médio e superior em andamento (92,7%), com relato de SASP na primeira relação sexual (54,2%), início da vida sexual antes dos 14 anos (43,4%) e história de sexo em grupo (24,6%) e de sexo transacional (14,6%). A prevalência de SASP nos últimos seis meses foi de 80,6% (IC95% 78,5%-82,6%). Adolescentes que relataram primeira relação sexual sem preservativo (RPa: 1,18; IC95% 1,10-1,25), consumo de substâncias psicoativas (RPa: 1,09; IC95% 1,03-1,16) e sexo transacional (RPa: 1,11; IC95% 1,04-1,20) tiveram maior prevalência de SASP nos últimos seis meses. Verificou-se também que aqueles com idade de 15 a 17 anos tiveram maior prevalência de SASP em comparação àqueles de 18 a 19 anos (RPa: 1,07; IC95% 0,99-1,13). CONCLUSÕES: A prevalência de SASP foi alta entre aHSH e aTrMT, bem como esteve associada a práticas que podem aumentar o risco de infecções sexualmente transmissíveis (IST). Assim, recomenda-se o fortalecimento de programas de saúde sexual para jovens que abordem o tema da sexualidade e prevenção de IST, tal como a ampliação do acesso a métodos preventivos, como preservativo e PrEP.

ABSTRACT OBJECTIVE: To identify the factors associated with HIV self-testing (HIVST) uptake among adolescent men who have sex with men (AMSM) and adolescent transgender women (ATGW) before and during the COVID-19 pandemic. METHODS: A cross-sectional HIVST uptake study was conducted among AMSM and ATGW. Peer educators and health professionals began providing HIVST in February 2019. The outcome was the HIVST uptake before and during the COVID-19 pandemic. The association between each predictor and outcome in each period was analyzed using simple and multiple logistic regressions, estimating odds ratios, and their respective 95% confidence intervals. RESULTS: The uptake was 229/510 (44.9%) and 382/1,075 (35.5%) before and during the pandemic. During the pre-pandemic period, HIVST uptake was higher in participants who reported receptive anal sex. During the pandemic, uptake was lower in participants with a steady sexual partner and higher in those with frequent oral sex with a steady partner in the previous three months. Before and during the pandemic, HIVST uptake was lower in ATGW and higher in those aged 18–19 years and in participants who lived alone. CONCLUSIONS: Uptake decreased during the pandemic. Sexual behavioral factors associated with HIVST uptake changed during the COVID-19 pandemic, showing the fluid dynamics of sexuality in AMSM and ATGW during this period. HIV programs can optimize the implementation of HIVST among adolescents and young people by incorporating effective and differentiated service delivery models to increase HIV testing uptake and to reach undiagnosed individuals effectively.

ABSTRACT OBJECTIVE: To identify recent HIV-1 infection and estimate HIV incidence among adolescent men who have sex with men (AMSM) and transgender women (ATGW) in Brazil. METHODS: From January to December 2020, a cross-sectional analysis was conducted with baseline data from the PrEP1519 study, an HIV pre-exposure prophylaxis (PrEP) demonstration cohort in Brazil among sexually active AMSM/ATGW aged 15-19. For enrollment, participants were screened with a fourth-generation HIV rapid test. The recent infection testing algorithm (RITA) included a recency assay in blood specimens, viral load, and CD4 cell count prior to antiretroviral treatment use. Among these participants, RITA-based HIV incidence was estimated using a mean duration of recency infection of 214 days and a false-recent rate of 0.02. RESULTS: Out of the 494 participants screened, 21 tested positive for HIV. Following RITA, five adolescents had a recent HIV infection, 14 had long-term infections, and two did not have blood specimens available. We classified these two participants as long-term infection cases due to CD4 cell counts and previous use of antiretroviral treatment. Among those who tested positive, all but one were AMSM (94.7%), 73.6% were aged 18-19, and 76.2% were non-White. The HIV prevalence was 4.2%, and the estimated HIV incidence was 1.7%. CONCLUSIONS: The estimated incidence highlights the need for targeted HIV prevention interventions, such as PrEP, for sexual minority adolescents. Integrating RITA into routine HIV testing services for this population provides valuable information on the current HIV epidemic. This strategy can aid in monitoring the effectiveness of prevention efforts and improving early entry to HIV care.

ABSTRACT OBJECTIVE: Viral hepatitis and sexually transmitted infections disproportionally affect men who have sex with men (MSM) and transgender women (TGW). However, only a few studies have evaluated the prevalence of hepatitis in these populations, especially in youths and adolescents. This study aimed to estimate the prevalence of biomarkers for hepatitis A, B, and C among young and adolescent MSM and TGW in three Brazilian municipalities. METHODS: Baseline data were collected from a combination of HIV prevention cohort of young and adolescent MSM (AMSM) and TGW (ATGW) aged 15-19 years in three Brazilian municipalities. A social behavioral questionnaire was applied, and immunoassays were performed to detect antibodies against hepatitis A (anti- HAV IgG and IgM), hepatitis B (anti-HBc and anti-HBs), and hepatitis C virus (anti-HCV); testing for the active hepatitis B marker, HBsAg, was also performed. The prevalence of reactive tests and 95% confidence interval (CI) for proportions were measured. RESULTS: The prevalence of naturally or artificially acquired immunity for hepatitis A totaled 17.7% (95%CI: 15.4-20.4), whereas that of acute infection, 0.4% (95%CI: 0.2-1.2). For hepatitis B and C, prevalence rates totaled 2.8% (95%CI: 1.8-4.4) and 0.2% (95%CI: 0.1-1.1), respectively. About 25.7% (95%CI: 22.4-29.4) of participants were non-reactive for anti-HBc and reactive for anti-HBs, the latter being a vaccine marker for hepatitis B. CONCLUSIONS: The investigation of viral hepatitis biomarkers among vulnerable populations enables the early identification of infections, the provision of timely treatment, and an opportunity to point out the need to expand vaccination coverage.

Resumo: Este estudo analisou desafios na criação de demanda para participação em um projeto de profilaxia pré-exposição (PrEP) ao HIV em duas capitais brasileiras. Trata-se de um estudo qualitativo realizado com homens que fazem sexo com homens e mulheres transgênero de 15 a 19 anos residentes de duas capitais brasileiras. Para esta análise, foram avaliadas 27 entrevistas semiestruturadas realizadas entre 2019 e 2020 com análise temática de conteúdo reflexiva. Para os participantes, a criação de demanda por PrEP foi essencial para o processo de interação, mediação, vínculo e apego e mostrou-se eficaz para a aceitabilidade e adesão à PrEP. As narrativas dos adolescentes mostraram que as estratégias promoveram a prevenção combinada do HIV, abriram oportunidades para reuniões de recrutamento, ajudaram a negociar e convencer os indivíduos a usar a PrEP, fortaleceram a educação entre pares e evocaram um sentimento de “estar com” e “caminhar juntos”, apesar dos desafios. As interações, sejam presenciais ou online, com o uso de tecnologias sociais, desempenharam um papel crucial no recrutamento de adolescentes para o projeto, na ampliação do conhecimento sobre PrEP e demais estratégias combinadas de prevenção, e no acesso a serviços de saúde e autocuidado. Resumo préexposição pré exposição (PrEP brasileiras Tratase Trata se 1 2 201 202 reflexiva participantes interação mediação mostrouse mostrou estar caminhar juntos, juntos , juntos” interações online sociais autocuidado 20

Abstract: This study aimed to analyze the challenges in demand creation for participation in an HIV pre-exposure prophylaxis (PrEP) project in two Brazilian capitals. This qualitative study was conducted with men who have sex with men and transgender women aged 15 to 19 years who lived in two Brazilian state capitals. For this analysis, 27 semi-structured interviews carried out from 2019 to 2020 were evaluated by reflexive thematic content analysis. For participants, PrEP demand creation was essential for their interaction, mediation, bonding, and attachment and proved effective for PrEP acceptability and adherence. Adolescents’ narratives showed that the strategies promoted HIV combination prevention, opened up opportunities for recruitment meetings, helped to negotiate with and convince individuals to use PrEP, strengthened peer education, and evoked a feeling of “being with” and “walking together” despite the challenges. Face-to-face or online interactions using social technologies played a crucial role in recruiting adolescents for the project, expanding knowledge on PrEP and other combination prevention strategies and access to health services and self-care. Abstract preexposure pre exposure (PrEP capitals 1 analysis 2 semistructured semi structured 201 202 participants interaction mediation bonding adherence Adolescents meetings education being walking together Facetoface Face face selfcare. selfcare self care. care self-care 20

Resumen: Este estudio analizó los desafíos para crear demanda para la participación en un proyecto de profilaxis pre-exposición (PrEP) al VIH en dos capitales brasileñas. Se trata de un estudio cualitativo realizado con hombres que tienen sexo con hombres y mujeres transgénero de 15 a 19 años residentes de dos capitales brasileñas. Para este análisis, se evaluaron 27 entrevistas semiestructuradas realizadas entre 2019 y 2020 con un análisis temático de contenido reflexivo. Para los participantes, crear la demanda por PrEP fue fundamental para el proceso de interacción, mediación, vínculo y apego y demostró ser eficaz para la aceptabilidad y adhesión de la PrEP. Los relatos de los adolescentes mostraron que las estrategias promovieron la prevención combinada del VIH, posibilitaron reuniones de reclutamiento, ayudaron a negociar y convencer a las personas a usar la PrEP, fortalecieron la educación entre pares y evocaron un sentimiento de “estar con” y “caminar juntos”, a pesar de los desafíos. Las interacciones, ya sean de manera presencial o online, con el uso de las tecnologías sociales, tuvieron un papel fundamental en el reclutamiento de adolescentes para el proyecto, en la ampliación del conocimiento sobre la PrEP y las demás estrategias de prevención combinadas, y en el acceso a servicios de salud y autocuidado. Resumen preexposición pre exposición (PrEP brasileñas 1 2 201 202 reflexivo participantes interacción mediación estar caminar juntos, juntos , juntos” interacciones online sociales combinadas autocuidado 20

Resumo Antecedentes Encefalites autoimunes (EAIs) são um grupo de doenças inflamatórias caracterizadas pela presença de anticorpos contra antígenos neuronais e gliais, que ocasionam sintomas psiquiátricos subagudos, queixas de memória e distúrbios anormais do movimento. A maioria dos pacientes é jovem, e o atraso no tratamento está associado a pior prognóstico. Objetivo Com o apoio da Academia Brasileira de Neurologia (ABN) e da Sociedade Brasileira de Neurologia Infantil (SBNI), desenvolvemos um consenso sobre o diagnóstico e o tratamento da EAIs no Brasil utilizando a metodologia Delphi. Métodos Um total de 25 especialistas, incluindo neurologistas e neurologistas infantis, foram convidados a participar. Resultados Os especialistas concordaram que os pacientes com critérios de possíveis EAIs devem ser submetidos ao rastreio de anticorpos antineuronais no soro e no líquido cefalorraquidiano (LCR) por meio das técnicas de ensaio baseado em tecidos (tissue-based assay, TBA, em inglês) e ensaio baseado em células (cell-based assay, CBA, em inglês). As crianças também devem ser submetidas ao rastreio de de anticorpo contra a glicoproteína da mielina de oligodendrócitos (anti-myelin oligodendrocyte glycoprotein, anti-MOG, em inglês). O tratamento deve ser iniciado dentro das primeiras 4 semanas dos sintomas, sendo as opções de primeira linha metilprednisolona combinada com imunoglobulina intravenosa (IGIV) ou plasmaférese. O tratamento de segunda linha inclui rituximabe e ciclofosfamida. Bortezomib e tocilizumab são opções de tratamento de terceira linha. A maioria das crises epilépticas nas EAIs são sintomáticas, e os fármacos anticrise podem ser desmamadas após a fase aguda. Em relação à encefalite antirreceptor de N-metil-D-aspartato (anti-N-methyl-D-aspartate receptor, anti-NMDAR, em inglês), os especialistas concordaram que agentes imunossupressores orais não devem ser usados. Os pacientes devem ser avaliados na fase aguda e pós-aguda mediante escalas funcionais e cognitivas, como Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Modified Rankin Scale (mRS), e Clinical Assessment Scale in Autoimmune Encephalitis (CASE). Conclusão Esta pesquisa oferece evidências tangíveis do manejo efetivo de pacientes com EAIs no sistema de saúde Brasileiro. (EAIs gliais subagudos movimento jovem prognóstico ABN (ABN SBNI, SBNI , (SBNI) Delphi 2 infantis participar LCR (LCR tissuebased tissue based assay TBA inglês cellbased cell CBA inglês. . antimyelin anti myelin glycoprotein antiMOG, antiMOG MOG, MOG anti-MOG IGIV (IGIV plasmaférese ciclofosfamida sintomáticas NmetilDaspartato N metil D aspartato antiNmethylDaspartate methyl aspartate receptor antiNMDAR, antiNMDAR NMDAR, NMDAR anti-NMDAR inglês, usados pósaguda pós cognitivas MiniMental Mini Mental MMSE, MMSE (MMSE) MoCA, MoCA (MoCA) mRS, mRS (mRS) CASE. CASE (CASE) Brasileiro (SBNI (MMSE (MoCA (mRS (CASE

Abstract Background Autoimmune encephalitis (AIE) is a group of inflammatory diseases characterized by the presence of antibodies against neuronal and glial antigens, leading to subacute psychiatric symptoms, memory complaints, and movement disorders. The patients are predominantly young, and delays in treatment are associated with worse prognosis. Objective With the support of the Brazilian Academy of Neurology (Academia Brasileira de Neurologia, ABN) and the Brazilian Society of Child Neurology (Sociedade Brasileira de Neurologia Infantil, SBNI), a consensus on the diagnosis and treatment of AIE in Brazil was developed using the Delphi method. Methods A total of 25 panelists, including adult and child neurologists, participated in the study. Results The panelists agreed that patients fulfilling criteria for possible AIE should be screened for antineuronal antibodies in the serum and cerebrospinal fluid (CSF) using the tissue-based assay (TBA) and cell-based assay (CBA) techniques. Children should also be screened for anti-myelin oligodendrocyte glucoprotein antibodies (anti-MOG). Treatment should be started within the first 4 weeks of symptoms. The first-line option is methylprednisolone plus intravenous immunoglobulin (IVIG) or plasmapheresis, the second-line includes rituximab and/or cyclophosphamide, while third-line treatment options are bortezomib and tocilizumab. Most seizures in AIE are symptomatic, and antiseizure medications may be weaned after the acute stage. In anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis, the panelists have agreed that oral immunosuppressant agents should not be used. Patients should be evaluated at the acute and postacute stages using functional and cognitive scales, such as the Mini-Mental State Examination (MMSE), the Montreal Cognitive Assessment (MoCA), the Modified Rankin Scale (mRS), and the Clinical Assessment Scale in Autoimmune Encephalitis (CASE). Conclusion The present study provides tangible evidence for the effective management of AIE patients within the Brazilian healthcare system. (AIE antigens symptoms complaints disorders young prognosis Academia ABN Sociedade Infantil SBNI, SBNI , SBNI) method 2 neurologists CSF (CSF tissuebased tissue based TBA (TBA cellbased cell CBA (CBA techniques antimyelin anti myelin antiMOG. antiMOG MOG . (anti-MOG) firstline line IVIG (IVIG plasmapheresis secondline second andor cyclophosphamide thirdline third tocilizumab symptomatic stage antiNmethylDaspartate N methyl D aspartate antiNMDAR NMDAR (anti-NMDAR used scales MiniMental Mini Mental MMSE, MMSE (MMSE) MoCA, MoCA (MoCA) mRS, mRS (mRS) CASE. CASE (CASE) system (anti-MOG (MMSE (MoCA (mRS (CASE

RESUMO O objetivo deste estudo foi apresentar uma ferramenta metodológica para avaliação fenotípica em testes de progênie de Guazuma crinita em parcelas de produtores na bacia do rio Aguaytía, Ucayali, Peru, que permite aos técnicos de campo padronizar os critérios de avaliação morfológica das árvores em plantações florestais. Também foi estimada a herdabilidade e as correlações genéticas e fenotípicas entre os caracteres. Dessa maneira, os caracteres fenotípicos foram avaliados para altura da planta (m), diâmetro na altura da base (cm), número de ramos, número de anéis, forma do fuste, orientação do ramo, presença e quantidade de folhas. Sendo assim, 32 categorias morfológicas foram plotadas com base nas correlações significativas (p? 0,05) mostradas entre local de plantio, forma do fuste, orientação do ramo e presença de folhas. Conclui-se que as correlações entre os caracteres biométricas e morfológicas avaliadas permitiram a validação dos procedimentos de avaliação fenotípica dos testes de progênies de Guazuma crinita aos 36 meses de idade. Aguaytía Ucayali Peru florestais maneira m, m , (m) cm, cm (cm) ramos anéis fuste folhas assim 3 p (p 0,05 005 0 05 plantio Concluise Conclui se idade (m (cm 0,0 00 0,

ABSTRACT The objective of this study was to present a methodological tool for the phenotypic evaluation in progeny tests of Guazuma crinita in producer plots of the Aguaytía river basin, Ucayali, Peru, which allows field technicians to standardize the morphological evaluation criteria of trees in forest plantations. Therefore, the phenotypic traits were evaluated for plant height (m), diameter at the height of the base (cm), number of branches, number of rings, stem form, branch orientation, presence and quantity of leaves. The heritability and genetic and phenotypic correlations between traits were also estimated. Therefore, 32 morphological categories were plotted based on the significant correlations (p? 0.05) shown between the place of planting, the stem form, the orientation of the branches and the presence of leaves. For the same reason, the progeny showed low morphological patterns, being a low factor of phenotypic variability. It is concluded that the correlations between the biometric and morphological traits evaluated, allowed to validate the phenotypic evaluation procedures of Guazuma crinita progeny tests at 36 months of age. basin Ucayali Peru plantations Therefore m, m , (m) cm, cm (cm) rings form leaves estimated 3 p (p 0.05 005 0 05 planting reason patterns variability age (m (cm 0.0 00 0.

RESUMO OBJETIVO: Analisar os fatores que aumentam a prática de sexo anal sem preservativo (SASP) entre adolescentes homens que fazem sexo com homens (aHSH) e travestis mulheres trans (aTrMT) em três capitais brasileiras. MÉTODOS: PrEP1519 é uma coorte prospectiva, multicêntrica, de demonstração da efetividade da profilaxia pré-exposição (PrEP) ao HIV entre aHSH e aTrMT, com idade entre 15 e 19 anos, em três capitais brasileiras. As análises foram realizadas com dados da linha de base da coorte, com a inclusão de 1.418 adolescentes inscritos de 2019 a 2021. O desfecho estudado foi SASP nos últimos seis meses, e os potenciais fatores associados foram sociodemográficos, comportamentais, de assistência à saúde e histórico de violência e discriminação. Foi realizada análise descritiva, bivariada e multivariada. Estimaram-se razões de prevalência ajustadas (RPa) e intervalos de confiança de 95% (IC95%). RESULTADOS: A maioria dos participantes era aHSH (91,5%), com idade de 18 a 19 anos (75,9%), pretos (40,5%), ensino médio e superior em andamento (92,7%), com relato de SASP na primeira relação sexual (54,2%), início da vida sexual antes dos 14 anos (43,4%) e história de sexo em grupo (24,6%) e de sexo transacional (14,6%). A prevalência de SASP nos últimos seis meses foi de 80,6% (IC95% 78,5%-82,6%). Adolescentes que relataram primeira relação sexual sem preservativo (RPa: 1,18; IC95% 1,10-1,25), consumo de substâncias psicoativas (RPa: 1,09; IC95% 1,03-1,16) e sexo transacional (RPa: 1,11; IC95% 1,04-1,20) tiveram maior prevalência de SASP nos últimos seis meses. Verificou-se também que aqueles com idade de 15 a 17 anos tiveram maior prevalência de SASP em comparação àqueles de 18 a 19 anos (RPa: 1,07; IC95% 0,99-1,13). CONCLUSÕES: A prevalência de SASP foi alta entre aHSH e aTrMT, bem como esteve associada a práticas que podem aumentar o risco de infecções sexualmente transmissíveis (IST). Assim, recomenda-se o fortalecimento de programas de saúde sexual para jovens que abordem o tema da sexualidade e prevenção de IST, tal como a ampliação do acesso a métodos preventivos, como preservativo e PrEP. OBJETIVO (SASP (aHSH aTrMT (aTrMT brasileiras MÉTODOS PrEP PrEP151 prospectiva multicêntrica préexposição pré exposição (PrEP 1 1418 418 1.41 201 2021 sociodemográficos comportamentais discriminação descritiva multivariada Estimaramse Estimaram se RPa (RPa 95 IC95%. IC95 IC . (IC95%) RESULTADOS 91,5%, 915 91,5% , 91 5 (91,5%) 75,9%, 759 75,9% 75 9 (75,9%) 40,5%, 405 40,5% 40 (40,5%) 92,7%, 927 92,7% 92 7 (92,7%) 54,2%, 542 54,2% 54 2 (54,2%) 43,4% 434 43 4 (43,4% 24,6% 246 24 6 (24,6% 14,6%. 146 14,6% (14,6%) 806 80 80,6 (IC95 78,5%82,6%. 785826 78,5% 82,6% 78 82 78,5%-82,6%) 1,18 118 1,101,25, 110125 1,10 1,25 10 25 1,10-1,25) 1,09 109 09 1,031,16 103116 1,03 1,16 03 16 1,03-1,16 1,11 111 11 1,041,20 104120 1,04 1,20 04 20 1,04-1,20 Verificouse Verificou 1,07 107 07 0,991,13. 099113 0,99 1,13 0 99 13 0,99-1,13) CONCLUSÕES IST. IST (IST) Assim recomendase recomenda preventivos PrEP15 141 41 1.4 202 IC9 91,5 (91,5% 75,9 (75,9% 40,5 (40,5% 92,7 (92,7% 54,2 (54,2% 43,4 (43,4 24,6 (24,6 14,6 (14,6% 8 80, (IC9 78,5%82,6% 78582 785 78,5 826 82,6 78,5%-82,6% 1,1 101 1,101,25 11012 110 125 1,2 1,10-1,25 1,0 031 1,031,1 10311 103 116 1,03-1,1 041 1,041,2 10412 104 120 1,04-1,2 991 0,991,13 09911 099 0,9 113 0,99-1,13 (IST PrEP1 1. 91, (91,5 75, (75,9 40, (40,5 92, (92,7 54, (54,2 43, (43, 24, (24, 14, (14,6 (IC 78,5%82,6 7858 78, 82, 78,5%-82,6 1, 1,101,2 1101 12 1,10-1,2 1,031, 1031 1,03-1, 1,041, 1041 1,04-1, 0,991,1 0991 0, 0,99-1,1 (91, (75, (40, (92, (54, (43 (24 (14, 78,5%82, 78,5%-82, 1,101, 1,10-1, 1,031 1,03-1 1,041 1,04-1 0,991, 0,99-1, (91 (75 (40 (92 (54 (4 (2 (14 78,5%82 78,5%-82 1,101 1,10-1 1,03- 1,04- 0,991 0,99-1 (9 (7 (5 ( (1 78,5%8 78,5%-8 1,10- 0,99- 78,5%-

ABSTRACT OBJECTIVE: To analyze the factors that increase the practice of condomless anal sex (CAS) among adolescent men who have sex with men (AMSM) and adolescent travestis and transgender women (ATGW) in three Brazilian state capitals. METHODS: PrEP1519 is a prospective, multicenter cohort study demonstrating the effectiveness of human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) among AMSM and ATGW aged from 15 to 19 years in three Brazilian state capitals. The analyses were performed with baseline cohort data, including 1,418 adolescents enrolled from 2019 to 2021. The outcome studied was CAS in the last six months, and the potentially associated factors were sociodemographic, behavioral, healthcare, and history of violence and discrimination. Descriptive, bivariate, and multivariate analyses were conducted. Adjusted prevalence ratios (aPRs) and 95% confidence intervals (95%CI) were estimated. RESULTS: Most of the participants were AMSM (91.5%), aged 18 to 19 years (75.9%), Black (40.5%), with secondary or higher education in progress (92.7%), with CAS during the first sexual intercourse (54.2%), sexual initiation before the age of 14 (43.4%), and history of group sex (24.6%) and transactional sex (14.6%). The prevalence of CAS in the last six months was 80.6% (95%CI 78.5%-82.6%). Adolescents who reported condomless first sexual intercourse (aPR: 1.18; 95%CI 1.10-1.25), use of psychoactive substances (aPR: 1.09; 95%CI 1.03-1.16), and transactional sex (aPR: 1.11; 95%CI 1.04-1.20) had a higher prevalence of CAS in the last six months. We also found that those aged 15 to 17 years had a higher prevalence of CAS than those aged 18 to 19 (aPR: 1.07; 95%CI 0.99-1.13). CONCLUSIONS: The prevalence of CAS was high among AMSM and ATGW, being associated with practices that may increase the risk of sexually transmitted infections (STIs). Therefore, it is recommended to strengthen sexual health programs for young people that address the issue of sexuality and STI prevention, as well as to expand access to preventive methods, such as condoms and PrEP. OBJECTIVE (CAS (AMSM (ATGW capitals METHODS PrEP PrEP151 prospective HIV (HIV preexposure pre exposure (PrEP 1 data 1418 418 1,41 201 2021 sociodemographic behavioral healthcare discrimination Descriptive bivariate conducted aPRs (aPRs 95 95CI CI estimated RESULTS 91.5%, 915 91.5% , 91 5 (91.5%) 75.9%, 759 75.9% 75 9 (75.9%) 40.5%, 405 40.5% 40 (40.5%) 92.7%, 927 92.7% 92 7 (92.7%) 54.2%, 542 54.2% 54 2 (54.2%) 43.4%, 434 43.4% 43 4 (43.4%) 24.6% 246 24 6 (24.6% 14.6%. 146 14.6% . (14.6%) 806 80 80.6 78.5%82.6%. 785826 78.5% 82.6% 78 82 78.5%-82.6%) aPR (aPR 1.18 118 1.101.25, 110125 1.10 1.25 10 25 1.10-1.25) 1.09 109 09 1.031.16, 103116 1.03 1.16 03 16 1.03-1.16) 1.11 111 11 1.041.20 104120 1.04 1.20 04 20 1.04-1.20 1.07 107 07 0.991.13. 099113 0.99 1.13 0 99 13 0.99-1.13) CONCLUSIONS STIs. STIs (STIs) Therefore prevention methods PrEP15 141 41 1,4 202 91.5 (91.5% 75.9 (75.9% 40.5 (40.5% 92.7 (92.7% 54.2 (54.2% 43.4 (43.4% 24.6 (24.6 14.6 (14.6% 8 80. 78.5%82.6% 78582 785 78.5 826 82.6 78.5%-82.6% 1.1 101 1.101.25 11012 110 125 1.2 1.10-1.25 1.0 031 1.031.16 10311 103 116 1.03-1.16 041 1.041.2 10412 104 120 1.04-1.2 991 0.991.13 09911 099 0.9 113 0.99-1.13 (STIs PrEP1 1, 91. (91.5 75. (75.9 40. (40.5 92. (92.7 54. (54.2 43. (43.4 24. (24. 14. (14.6 78.5%82.6 7858 78. 82. 78.5%-82.6 1. 1.101.2 1101 12 1.10-1.2 1.031.1 1031 1.03-1.1 1.041. 1041 1.04-1. 0.991.1 0991 0. 0.99-1.1 (91. (75. (40. (92. (54. (43. (24 (14. 78.5%82. 78.5%-82. 1.101. 1.10-1. 1.031. 1.03-1. 1.041 1.04-1 0.991. 0.99-1. (91 (75 (40 (92 (54 (43 (2 (14 78.5%82 78.5%-82 1.101 1.10-1 1.031 1.03-1 1.04- 0.991 0.99-1 (9 (7 (4 (5 ( (1 78.5%8 78.5%-8 1.10- 1.03- 0.99- 78.5%-

ABSTRACT OBJECTIVE: To identify recent HIV-1 infection and estimate HIV incidence among adolescent men who have sex with men (AMSM) and transgender women (ATGW) in Brazil. METHODS: From January to December 2020, a cross-sectional analysis was conducted with baseline data from the PrEP1519 study, an HIV pre-exposure prophylaxis (PrEP) demonstration cohort in Brazil among sexually active AMSM/ATGW aged 15-19. For enrollment, participants were screened with a fourth-generation HIV rapid test. The recent infection testing algorithm (RITA) included a recency assay in blood specimens, viral load, and CD4 cell count prior to antiretroviral treatment use. Among these participants, RITA-based HIV incidence was estimated using a mean duration of recency infection of 214 days and a false-recent rate of 0.02. RESULTS: Out of the 494 participants screened, 21 tested positive for HIV. Following RITA, five adolescents had a recent HIV infection, 14 had long-term infections, and two did not have blood specimens available. We classified these two participants as long-term infection cases due to CD4 cell counts and previous use of antiretroviral treatment. Among those who tested positive, all but one were AMSM (94.7%), 73.6% were aged 18-19, and 76.2% were non-White. The HIV prevalence was 4.2%, and the estimated HIV incidence was 1.7%. CONCLUSIONS: The estimated incidence highlights the need for targeted HIV prevention interventions, such as PrEP, for sexual minority adolescents. Integrating RITA into routine HIV testing services for this population provides valuable information on the current HIV epidemic. This strategy can aid in monitoring the effectiveness of prevention efforts and improving early entry to HIV care. OBJECTIVE HIV1 1 HIV- (AMSM ATGW (ATGW METHODS 2020 crosssectional cross sectional PrEP PrEP151 study preexposure pre exposure (PrEP AMSMATGW 1519. 1519 15 19. 19 15-19 enrollment fourthgeneration fourth generation test (RITA load CD RITAbased based falserecent false 002 0 02 0.02 RESULTS 49 2 longterm long term infections available 94.7%, 947 94.7% , 94 7 (94.7%) 736 73 6 73.6 1819, 1819 18 19, 18-19 762 76 76.2 nonWhite. nonWhite non White. White non-White 42 4 4.2% 17 1.7% CONCLUSIONS interventions epidemic care 202 PrEP15 151 15-1 00 0.0 94.7 9 (94.7% 73. 181 18-1 76. 4.2 1.7 20 PrEP1 15- 0. 94. (94.7 18- 4. 1. (94. (94 (9 (

ABSTRACT OBJECTIVE: Viral hepatitis and sexually transmitted infections disproportionally affect men who have sex with men (MSM) and transgender women (TGW). However, only a few studies have evaluated the prevalence of hepatitis in these populations, especially in youths and adolescents. This study aimed to estimate the prevalence of biomarkers for hepatitis A, B, and C among young and adolescent MSM and TGW in three Brazilian municipalities. METHODS: Baseline data were collected from a combination of HIV prevention cohort of young and adolescent MSM (AMSM) and TGW (ATGW) aged 15-19 years in three Brazilian municipalities. A social behavioral questionnaire was applied, and immunoassays were performed to detect antibodies against hepatitis A (anti- HAV IgG and IgM), hepatitis B (anti-HBc and anti-HBs), and hepatitis C virus (anti-HCV); testing for the active hepatitis B marker, HBsAg, was also performed. The prevalence of reactive tests and 95% confidence interval (CI) for proportions were measured. RESULTS: The prevalence of naturally or artificially acquired immunity for hepatitis A totaled 17.7% (95%CI: 15.4-20.4), whereas that of acute infection, 0.4% (95%CI: 0.2-1.2). For hepatitis B and C, prevalence rates totaled 2.8% (95%CI: 1.8-4.4) and 0.2% (95%CI: 0.1-1.1), respectively. About 25.7% (95%CI: 22.4-29.4) of participants were non-reactive for anti-HBc and reactive for anti-HBs, the latter being a vaccine marker for hepatitis B. CONCLUSIONS: The investigation of viral hepatitis biomarkers among vulnerable populations enables the early identification of infections, the provision of timely treatment, and an opportunity to point out the need to expand vaccination coverage. OBJECTIVE (MSM TGW. . (TGW) However adolescents municipalities METHODS AMSM (AMSM ATGW (ATGW 1519 15 19 15-1 applied anti (anti IgM, IgM , IgM) antiHBc HBc antiHBs, antiHBs HBs anti-HBs) antiHCV HCV (anti-HCV) HBsAg 95 CI (CI measured RESULTS 177 17 7 17.7 95%CI 95CI (95%CI 15.420.4, 154204 15.4 20.4 4 20 15.4-20.4) infection 04 0 0.4 0.21.2. 0212 0.2 1.2 2 1 0.2-1.2) 28 8 2.8 1.84.4 1844 1.8 4.4 1.8-4.4 02 0.11.1, 0111 0.1 1.1 0.1-1.1) respectively 257 25 25.7 22.429.4 224294 22.4 29.4 22 29 22.4-29.4 nonreactive non HBs, anti-HBs CONCLUSIONS treatment coverage (TGW 151 15- (anti-HCV 9 17. 420 15.420.4 15420 154 15. 204 20. 15.4-20.4 0. 21 0.21.2 021 12 1. 0.2-1.2 2. 84 1.84. 184 18 44 4. 1.8-4. 11 0.11.1 011 01 0.1-1.1 25. 429 22.429. 22429 224 22. 294 29. 22.4-29. 42 15.420. 1542 15.4-20. 0.21. 0.2-1. 1.84 1.8-4 0.11. 0.1-1. 22.429 2242 22.4-29 15.420 15.4-20 0.21 0.2-1 1.8- 0.11 0.1-1 22.42 22.4-2 15.42 15.4-2 0.2- 0.1- 22.4- 15.4-

ABSTRACT OBJECTIVE: To identify the factors associated with HIV self-testing (HIVST) uptake among adolescent men who have sex with men (AMSM) and adolescent transgender women (ATGW) before and during the COVID-19 pandemic. METHODS: A cross-sectional HIVST uptake study was conducted among AMSM and ATGW. Peer educators and health professionals began providing HIVST in February 2019. The outcome was the HIVST uptake before and during the COVID-19 pandemic. The association between each predictor and outcome in each period was analyzed using simple and multiple logistic regressions, estimating odds ratios, and their respective 95% confidence intervals. RESULTS: The uptake was 229/510 (44.9%) and 382/1,075 (35.5%) before and during the pandemic. During the pre-pandemic period, HIVST uptake was higher in participants who reported receptive anal sex. During the pandemic, uptake was lower in participants with a steady sexual partner and higher in those with frequent oral sex with a steady partner in the previous three months. Before and during the pandemic, HIVST uptake was lower in ATGW and higher in those aged 18–19 years and in participants who lived alone. CONCLUSIONS: Uptake decreased during the pandemic. Sexual behavioral factors associated with HIVST uptake changed during the COVID-19 pandemic, showing the fluid dynamics of sexuality in AMSM and ATGW during this period. HIV programs can optimize the implementation of HIVST among adolescents and young people by incorporating effective and differentiated service delivery models to increase HIV testing uptake and to reach undiagnosed individuals effectively. OBJECTIVE selftesting self (HIVST (AMSM (ATGW COVID19 COVID 19 COVID-1 pandemic METHODS crosssectional cross sectional 2019 regressions ratios 95 intervals RESULTS 229510 229 510 229/51 44.9% 449 44 9 (44.9% 3821075 382 1 075 382/1,07 35.5% 355 35 5 (35.5% prepandemic pre months 1819 18 18–1 alone CONCLUSIONS effectively COVID1 COVID- 201 22951 22 51 229/5 44.9 4 (44.9 382107 38 07 382/1,0 35.5 3 (35.5 181 18– 20 2295 2 229/ 44. (44. 38210 0 382/1, 35. (35. (44 3821 382/1 (35 (4 382/ (3 (