| an outbreak of salmonellosis propagated by person-to-person transmission on an indian reservation. | between december 21, 1969, and april 14, 1970, 44 symptomatic cases of salmonella typhimurium gastroenteritis occurred among the approximately 2500 sioux indians of the lake traverse reservation in south dakota. twenty-five cases were confirmed by positive stool culture. all 19 cases not confirmed by culture had diarrhea and were epidemiologically associated with the culture-proven cases. fourteen of these were discovered during the course of the investigation and had not been cultured previousl ... | 1975 | 1099900 |