Dengue and Chikungunya seroprevalence in waste pickers from the largest Latin American open-air dump. Issue 6 (December 2021) - Cassemiro, Évelin Mota; Cilião-Alves, Daiani Cristina; Moura, Drielly Rodrigues; Slavov, Svetoslav Nanev; Quintão, Tatyane de Souza Cardoso; Scott, James Alexander; Marques, Carla Pintas; Obara, Marcos Takashi; de Araújo, Wildo Navegantes; Cruvinel, Vanessa Resende Nogueira; Haddad, Rodrigo