Fig. 5From: Non-O1/O139 Vibrio cholerae causes severe intestinal disease in bullfrogs (Rana catesbeiana)Intestinal histological lesions of a diseased bullfrog. a The healthy bullfrogs. No pathological changes in intestinal cells. b The experimentally challenged bullfrogs. Submucosal connective tissue was loose and inflammatory cells infiltrated the muscular layer and serosa. Red arrows show pathological lesionsBack to article page