| diagnoses of acute lower respiratory tract infections in children in rawalpindi and islamabad, pakistan. | a hospital-based inpatient and outpatient study of 1,492 cases of acute lower respiratory tract infection (alri) was conducted from november 1986 to march 1988 in two hospitals in rawalpindi and islamabad, pakistan. specimens of nasopharyngeal aspirate were processed for viral studies in all cases; blood cultures were performed in 1,331 cases; and urine was obtained for detection of bacterial antigen in 378 cases, but 227 of these samples had bacterial contamination and were discarded. respirato ... | 1990 | 2270413 |