| hepatitis transmission among the sioux indians of south dakota. | hepatitis a continues to occur in cyclical community-wide epidemics on the indian reservations of south dakota. in june 1985 a population-based serosurvey for viral hepatitis involving 120 households was conducted at the pine ridge and rosebud sioux indian reservations in south dakota. the serosurvey was performed shortly after a large hepatitis a epidemic on the pine ridge reservation in 1983-84, and immediately before a large hepatitis a epidemic on the rosebud reservation in 1985-86. the over ... | 1990 | 2166446 |