HIV prevalence among men who have sex with men in Brazil: results of the 2nd national survey using respondent-driven sampling von Kerr, Ligia, Kendall, Carl, Guimarães, Mark Drew Crosland, Salani Mota, Rosa, Veras, Maria Amélia, Dourado, Inês, Maria de Brito, Ana, Merchan-Hamann, Edgar, Pontes, Alexandre Kerr, Leal, Andréa Fachel, Knauth, Daniela, Castro, Ana Rita Coimbra Motta, Macena, Raimunda Hermelinda Maia, Lima, Luana Nepomuceno Costa, Oliveira, Lisangela Cristina, Cavalcantee, Maria do Socorro, Benzaken, Adele Schwartz, Pereira, Gerson, Pimenta, Cristina, Pascom, Ana Roberta Pati, Bermudez, Ximena Pamela Diaz, Moreira, Regina Célia, Brígido, Luis Fernando Macedo, Camillo, Ana Cláudia, McFarland, Willi, Johnston, Lisa G.

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Field evaluation of COVID‐19 antigen tests versus RNA based detection: Potential lower sensitivity compensated by immediate results, technical simplicity, and low cost von Matsuda, Elaine Monteiro, Campos, Ivana Barros, Oliveira, Isabela Penteriche, Colpas, Daniela Rodrigues, Carmo, Andreia Moreira dos Santos, Brígido, Luís Fernando de Macedo

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Transmitted Drug Resistance Among Recently Diagnosed Adults and Children in São Paulo, Brazil von Guimarães, Paula Morena de Souza, Ferreira, João Leandro de Paula, Coelho, Luana Portes Ozório, Cavalcanti, Jaqueline de Souza, Lopes, Giselle Ibette Silva Lopez, Matsuda, Elaine Monteiro, Almeida, Flávia Jacqueline, Almeida, Valéria Correia, Campeas, Alexandre Ely, Junior, Luiz Carlos Pereira, Brígido, Luís Fernando de Macedo

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An unexpected IgE anti-receptor binding domain response following natural infection and different types of SARS-CoV-2 vaccines von Portilho, Amanda Izeli, Silva, Valéria Oliveira, Da Costa, Hernan Hermes Monteiro, Yamashiro, Rosemeire, de Oliveira, Isabela Penteriche, de Campos, Ivana Barros, Prudencio, Carlos Roberto, Matsuda, Elaine Monteiro, de Macedo Brígido, Luís Fernando, De Gaspari, Elizabeth

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Safety and immunogenicity of an inactivated SARS-CoV-2 vaccine (CoronaVac) in inadvertently vaccinated healthy children von Fernandes, Eder Gatti, López-Lopes, Giselle Ibette Silva, Silva, Valeria Oliveira, Yamashiro, Rosemeire, Madureira, Karen Cristina Rolim, Gallo, Juliana Failde, Lindoso, José Angelo, Sato, Helena Keico, de Araujo, Núbia Virginia D'Avila Limeira, Nerger, Maria Ligia Bacciotte Ramos, Brigido, Luis Fernando Macedo

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An HIV-1 transmission case possibly associated with manicure care von Matsuda, Elaine Monteiro, Coelho, Luana Portes Ozório, Pimentel, Victor Figueiredo, Onias, Humberto Barjud, Brigido, Luís Fernando de Macedo

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Lamivudine-based two-drug regimens with dolutegravir or protease inhibitor: Virological suppression in spite of previous therapy failure or renal dysfunction von Matsuda, Elaine Monteiro, Campos, Ivana Barros, de Oliveira, Isabela Penteriche, Colpas, Daniela Rodrigues, López-Lopes, Giselle Ibete Silva, Chiavegato, Victor Oliveira, Brígido, Luís Fernando de Macedo

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High-resolution phylogenetics and phylogeography of human immunodeficiency virus type 1 subtype C epidemic in South America von MENDONCA COLLACO VERAS, Nazle, GRAY, Rebecca R, DE MACEDO BRIGIDO, Luis Fernando, RODRIGUES, Rosângela, SALEMI, Marco

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Tax Gene Characterization of Human T-Lymphotropic Virus Type 1 Strains from Brazilian HIV-Coinfected Patients von CAVALHEIRO MAGRI, Mariana, DE MACEDO BRIGIDO, Luis Fernando, RODRIGUES, Rosangela, KAMINAMI MORIMOTO, Helena, CATERINO-DE-ARAUJO, Adele

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In-vivo selection of the mutation F121Y in a patient failing raltegravir containing salvage regimen von Souza Cavalcanti, Jaqueline, Minhoto Lança, André, de Paula Ferreira, João Leandro, da Eira, Margareth, de Souza Dantas, Daniel Soares, de Macedo Brígido, Luís Fernando

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Transmitted Drug Resistance among People Living with HIV/Aids at Major Cities of Sao Paulo State, Brazil von Ferreira, Joao Leandro Paula, Rodrigues, Rosangela, Lança, Andre Minhoto, de Almeida, Valeria Correia, Rocha, Simone Queiroz, Ragazzo, Taisa Grotta, Estevam, Denise Lotufo, Brigido, Luis Fernando de Macedo

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Assessment of an in-house IgG ELISA targeting SARS-CoV-2 RBD: Applications in infected and vaccinated individuals von da Costa, Hernan Hermes Monteiro, Silva, Valeria Oliveira, Amorim, Gustavo Carvalho, Guereschi, Marcia Grando, Sergio, Luciana Marciano, Gomes, Carlos Henrique Rodrigues, Hong, Marisa Ailin, de Oliveira, Elaine Lopes, Brígido, Luis Fernando de Macedo, Lindoso, Jose Angelo Lauletta, Prudencio, Carlos Roberto

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Optimizing early infant diagnosis at delivery rooms with HIV-1 Abbott RealTime-PCR using phosphate buffered saline to complement low plasma volumes von Santos, Jaqueline Helena da Silva, Sichi, Andressa Coelho, Ahagon, Cintia Mayumi, Campos, Norberto Camilo, Brígido, Luís Fernando de Macedo

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Immediate start of antiretroviral, why not? von Matsuda, Elaine Monteiro, Coelho, Luana Portes Ozório, Ahagon, Cintia Mayumi, Campos, Ivana Barros, Brígido, Luís Fernando de Macedo

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Long Terminal Repeat Sequence Analysis of HTLV-2 Molecular Variants Identified in Southern Brazil von CAVALHEIRO MAGRI, Mariana, KAMINAMI MORIMOTO, Helena, DE MACEDO BRIGIDO, Luis Fernando, RODRIGUES, Rosangela, CATERINO-DE-ARAUJO, Adele

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Use of Sanger protocols to identify variants of concern, key mutations and track evolution of SARS-CoV-2 von Cabral, Gabriela Bastos, Ahagon, Cintia Mayumi, de Souza Guimarães, Paula Morena, Silva Lopez-Lopes, Giselle Ibette, Hussein, Igor Mohamed, Cilli, Audrey, de Jesus Alves, Ivy, Coelho Bombonatte, Andréa Gobetti, do Carmo Sampaio Tavares Timenetsky, Maria, da Silva Santos, Jaqueline Helena, de Oliveira Santos, Katia Corrêa, dos Santos, Fabiana Cristina Pereira, de Macedo Brígido, Luís Fernando

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Long-term virological effectiveness with darunavir/ritonavir-based salvage therapy in people living with HIV/AIDS from São Paulo, Brazil von Santos, Ariane Melaré Ramos dos, Martins, Amaury Pachione, Juliato, Denise, de Miranda, Érique José Farias Peixoto, Lopes, Giselle Ibette Silva Lopez, Brígido, Luís Fernando de Macedo, Vidal, José Ernesto

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High frequency of dolutegravir resistance in patients failing a raltegravir-containing salvage regimen von Cavalcanti, Jaqueline de Souza, Ferreira, João Leandro de Paula, Guimarães, Paula Morena de Souza, Vidal, Jose Ernesto, Brigido, Luis Fernando de Macedo

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SARS-CoV-2 testing among patients and healthcare professionals in an HIV outpatient clinic in Brazil von Matsuda, Elaine Monteiro, Oliveira, Isabela Penteriche de, Campos, Ivana Barros de, Ahagon, Cintia Mayumi, Castejon, Marcia Jorge, Silva, Valeria Oliveira, Manzoni, Fernanda Matsuda, López-Lopes, Giselle Ibette, Brígido, Luís Fernando de Macedo

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HIV-1 tropism and CD4 T lymphocyte recovery in a prospective cohort of patients initiating HAART in Ribeirão Preto, Brazil von Lanca, Andre Minhoto, Collares, Jeova Keny Baima, Ferreira, João Leandro de Paula, Lima, Danielle Malta, Brigido, Luis Fernando de Macedo, Rodrigues, Rosangela, Fonseca, Benedito Antonio Lopes da

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