Incidence rates and protective effect of cholera culture-negative and -positive AWD and culture-negative severe AWD between vaccine and placebo groups stratified by age group and cholera season.

Incidence rates and protective effect of cholera culture-negative and -positive AWD and culture-negative severe AWD between vaccine and placebo groups stratified by age group and cholera season.按年龄组与霍乱季节分层后，疫苗组与安慰剂组间霍乱弧菌培养阴性、培养阳性急性水样腹泻（Acute Watery Diarrhea，AWD）及培养阴性重症急性水样腹泻的发病率与保护效应