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

HIV testing and HIV knowledge among men who have sex with men in Natal, Northeast Brazil Monica Baumgardt Bay, Marise Reis de Freitas, Marcia Cavalcante Vinhas Lucas, Elizabeth Cristina Fagundes de Souza, Angelo Giuseppe Roncalli

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