Travestis, transgender women and young MSM are at high risk for PrEP early loss to follow-up in Rio de Janeiro, Brazil Amanda Echeverría-Guevara; Lara E. Coelho; Valdiléa G. Veloso; Maria C. Pimenta; Brenda Hoagland; Ronaldo I. Moreira; Iuri Leite; Emília M. Jalil; Sandra W. Cardoso; Thiago S. Torres; Beatriz Grinsztejn;

Seroprevalence of hepatitis E virus infection among volunteer blood donors in Central Brazil Sabrina Moreira dos Santos Weis-Torres; Adriana de Oliveira França; Celso Granato; Amanda Passarini; Ana Rita Coimbra Motta-Castro;

Seroprevalence of hepatitis E virus infection in blood donors from Piauí State, Northeast Brazil João Paulo da Silva-Sampaio; Raniela Borges Sinimbu; Julia Trece Marques; Abilio Francisco de Oliveira Neto; Livia Melo Villar;