FROM the month of July 1943 to August 1946 there were 15,688 admissions to the Hospital Infantil, México, D. F.; the condition of 457 patients was definitely diagnosed as typhoid (typhoid and paratyphoid), i. e., for 2.91 per cent of the patients admitted. Among these 457 cases there were 33 cases of peritonitis (7.22 per cent), of which 29 were due to perforation of the ileum (6.35 per cent) and 4, to rupture of the gallbladder (0.87 per cent).
Besides, there were 3 cases of acute cholecystitis in which my associates and I felt operation was not indicated. These patients were cured by medical treatment without having had a rupture of the gallbladder. This represents 0.66 per cent of the total number of patients with typhoid admitted. Table 1 gives a detailed account of the 29 cases of intestinal perforation, including the age of the patient and the period of