Viruses Surveillance Under Different Season Scenarios of the Negro River Basin, Amazonia, Brazil.

摘要: The Negro River is located in the Amazon basin, largest hydrological catchment world. Its water used for drinking, domestic activities, recreation and transportation quality significantly affected by anthropogenic impacts. goals of this study were to determine presence concentrations main viral etiological agents acute gastroenteritis, such as group A rotavirus (RVA) genogroup II norovirus (NoV GII), assess use human adenovirus (HAdV) JC polyomavirus (JCPyV) indicators faecal contamination aquatic environment Manaus under different scenarios. Water samples collected along small streams known igarapes. Viruses concentrated an organic flocculation method detected quantitative PCR. From 272 analysed, HAdV was 91.9 %, followed JCPyV (69.5 %), RVA (23.9 %) NoV GII (7.4 %). Viral ranged from 102 106 GC L−1 viruses more likely be during flood season, with exception GII, which only dry season. Statistically significant differences on virus between seasons observed RVA. data provides a useful complement indicator bacteria monitoring environments. Overall results demonstrated that cycle Basin affects dynamics environments and, consequently, exposure citizens these waterborne pathogens.