<prompt> Nyorai kupfuurira kweiyi ndima - Iyi nharaunda inozivikanwa nokuda kwechirwere checholera muna 1854  <response>: zvichitungamirira mukushandiswa kwokutanga kwenheyo huru dzeepidemiological kupedza dambudziko racho. John Snow, chiremba uyo akaziva kuti vanhu vacho vakanga vakaungana pedyo nepombi iri paBroad Street akataura zvaakawana pamepu. Kwakaita kuti pombi ivharwe uye kuderera kwezviitiko zvecholera kwakanga kuri kukurumidza. 