| acute respiratory tract infections among a birth cohort of children from cali, colombia, who were studied through 17 months of age. | for this study, 340 children less than 18 months old from a low-income, urban neighborhood in cali, colombia, were observed from birth by means of weekly home visits to detect cases of acute respiratory tract infection. all suspected cases were confirmed by trained doctors in a special clinic. information on symptoms, signs, and potential risk factors was documented prospectively. etiologic agents were identified in cases of lower respiratory tract infection (lri). the overall incidence of acute ... | 1990 | 2270417 |