| astrovirus-associated diarrhea among guatemalan ambulatory rural children. | fecal excretion of astroviruses was monitored in 321 children, 0 to 3 years old, living in the rural highlands of guatemala. during the longitudinal study, from february 1987 to february 1989, we examined 5,000 stool specimens, including 1,805 collected during 1,369 episodes of diarrhea, 830 collected during the convalescent week, and 216 and 244 collected 2 weeks and 1 week, respectively, before the onset of diarrhea. routine specimens were taken once a month from every child who had been free ... | 1992 | 1583111 |