The main risk factor for typhoid was un-boiled well water drinking in school ( OR= .,9% CI =.7-.0).
The main risk factor for typhoid was un-boiled well water drinking in school ( OR= .,9% CI =.7-.0).
在校经常喝生井水与本次疫情有联系 (OR = ,9 %CI为 7～ 0 )。
The main risk factor for typhoid was un-boiled well water drinking in school ( OR= .,9% CI =.7-.0).
在校经常喝生井水与本次疫情有联系 (OR = ,9 %CI为 7～ 0 )。