| rotaviruses as a cause of nosocomial, infantile diarrhoea in northern brazil: pilot study. | faecal samples were obtained from 190 children, aged 0 to 5 years, admitted to a public hospital in belém, pará, brazil. these patients were placed in a pediatric ward with 40 beds distributed in six rooms. cases were classified into three groups: (a) nosocomial: children who developed gastroenteritis 72 hr or later after admission; (b) community-acquired: patients admitted either with diarrhoea or who had diarrhoea within 72 hr following admission; (c) non-diarrhoeic: those children who had no ... | 1995 | 8731371 |