Vulnerability to HIV among older men who have sex with men users of dating apps in Brazil Artur Acelino Francisco L.N. Queiroz, Alvaro Francisco Lopes de Sousa, Sandra Brignol, Telma Maria Evangelista Araújo, Renata K. Reis

Hepatitis C prevalence among men who have sex with men in Central Brazil Andreia Alves de Andrade, Ágabo Macêdo da Costa e Silva, Megmar Aparecida dos Santos Carneiro, Sheila Araújo Teles, Regina Maria Bringel Martins

Human T cell lymphotropic virus type 1 infection among men who have sex with men in Central Brazil Lisie Souza Castro, Grazielli Rocha de Rezende, Fernanda Rodas Pires Fernandes, Larissa Melo Bandeira, Marco Antonio Moreira Puga, Tayana Serpa Ortiz Tanaka, Sabrina Moreira dos Santos Weis-Torres, Ana Carolina Paulo Vicente, Koko Otsuki, Ana Rita Coimbra Motta-Castro