There is no evidence of malnutrition in the Canton of Puriscal as revealed by careful prospective study of all children born from September 19 of 1979 onwards. Several factors may account for this remarkable situation. ...

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 ...

This paper presents the findings of a prospective study of the infectious morbidity of a cohort of 114 rural infants throughout their first year of life. Results indicate that upper respiratory infections were the most ...