Occurrence of norovirus genogroups I and II in recreational water from four beaches in Belém city, Brazilian Amazon region. - de Deus DR; Teixeira DM; Dos Santos Alves JC; Smith VC; da Silva Bandeira R; Siqueira JAM; de Sá Morais LLC; Resque HR; Gabbay YB (Journal of water and health, 2019)