Between September 1979 and September 1981 a field study was conducted on the etiology of diarrhea' disease in the area of Puriscal, Costa Rica. The presence of enteric pathogens was investigated in the stools of 267 ...

The pretence of enteric pathogens was studied in 279 diarrheic and 198 nondiarrheic children in a rural area of Costa Rica whose childhood population are the object of a prospective multidisciplinary study. Cases end ...