Human immunodeficiency virus infection and syphilis among homeless people in a large city of Central-Western Brazil: prevalence, risk factors, human immunodeficiency virus-1 genetic diversity, and drug resistance mutations Raquel Silva Pinheiro; Paulie Marcelly Ribeiro dos Santos Carvalho; Marcos André de Matos; Karlla Antonieta Amorim Caetano; Andressa Cunha de Paula; Megmar Aparecida dos Santos Carneiro; Mônica Nogueira da Guarda Reis; Regina Maria Bringel Martins; Mariane Martins de Araújo Stefani; Sheila Araujo Teles;

Perceived levels of social stigma following HIV notification: Insights from Brazilian blood centers Renata Buccheri; Carolina Miranda; Cesar de Almeida-Neto; Thelma Gonçalez; Liliana Preiss; Luiz Amorim; Anna Barbara Carneiro-Proiett; Paula Loureiro; Ester C. Sabino; Brian Custer;

Effectiveness of CoronaVac in the prevention of COVID-19, a test-negative case-control study in Brazil Expedito J.A. Luna; José C. Moraes; Manuela A. Roediger; Erique J.F.P. Miranda; Patrícia E. Braga; João I.D. França; Pedro H.M. Pacheco; Marcos Alves de Lima; Lucas Ragiotto; Eliana N.C. Barros;