牛蛙红腿病由细菌感染引起,病蛙行动迟钝,食欲退止,后腿和腹部出现点状出血,继而扩大为红色斑块,并可感染至体表及肺、肝、脾、肠等部位,使组织坏死、出血,腹部膨胀。该病发病快、传染性强、死亡率高,是危害牛蛙最为严重的疾病之一。 Bullfrog red leg disease caused by bacterial infection, disease frog slow action, appetite, back and abdomen punctate bleeding, and then expanded to red patches, and can be infected to the body surface and lung, liver, spleen, intestine and other parts , So that tissue necrosis, bleeding, abdominal swelling. The rapid onset of the disease, highly contagious, high mortality is one of the most serious diseases endangering bullfrog.