Fig. 4From: Non-O1/O139 Vibrio cholerae causes severe intestinal disease in bullfrogs (Rana catesbeiana)Kaplan–Meier survival curve of bullfrogs experimentally challenged with V. cholerae and determination of LC50 value. Each group gave 10 bullfrogs, the abscissa is the number of experimental days, and the ordinate is the mortality rateBack to article page