| genotypes and molecular epidemiology of human astroviruses in hospitalized children with acute gastroenteritis in rio de janeiro, brazil. | human astrovirus (hastv) is an important pathogen that causes acute gastroenteritis mainly in children up to 5 years old worldwide. a total of 318 fecal samples were collected from january to december of 2004 from children with acute gastroenteritis hospitalized in rio de janeiro (rj), brazil. the samples were obtained from three public hospitals and were previously investigated for the presence of rotavirus (rv) and enteric adenovirus (adv). the aim of this study was to determine the prevalence ... | 2007 | 17516522 |
| molecular detection of human astrovirus in an urban sewage treatment plant in rio de janeiro, brazil. | the objective of this study was to evaluate the prevalence and dissemination of human astroviruses (hastv) in the environment by analyzing urban sewage samples from a wastewater treatment plant in the city of rio de janeiro, brazil. a one-year study was performed with a total of 48 raw and treated sewage composite samples, which were collected biweekly from an activated sludge plant. virus particles were concentrated by the adsorption-elution method using negatively charged membranes associated ... | 2008 | 19148423 |