A retrospective study had been done on hospitalized infants and children at Panyabungan Hospital in South Tapanuli Residence, during the period of 1992. During this period there were 367 patients. Most of them-135 (36.78 percent) were suffered from acute gastroenteritis; the other diagnoses were 76 (20.71 percent) acute bronchopneumonia, 70 (19.07 percent) malaria. 18 (4.9 percent) typhoid feve…