Detection of four dengue serotypes suggests rise in hyperendemicity in urban centers of Brazil. - Christian Julián Villabona-Arenas; Jessica Luana de Oliveira; Carla de Sousa Capra; Karime Balarini; Mauricio Loureiro; Celso Ricardo Theoto P Fonseca; Saulo Duarte Passos; Paolo Marinho de Andrade Zanotto (Public Library of Science (PLoS), 2014)