迟缓爱德华菌(Ｅｄｗａｒｄｓｉｅｌｌａｔａｒｄａ)是爱德华菌属中对人和鱼类均具有致病性的病原体,经口或创伤感染后,可引起肠胃炎、败血症等严重疾病〔１〕,鱼类感染后可导致肝肾损害。目前,对该菌所致疾病的诊断主要靠临诊观察和细菌学检查,难以做到准确、及时。鉴于国内外 Edwardsiellaarda is a causative pathogen of both genus and fish in the genus Edwards and may cause severe diseases such as gastroenteritis and septicemia after oral or traumatic infection [1]. Infection with fish may result in Liver and kidney damage. At present, the diagnosis of the disease caused by the bacteria mainly rely on clinical observation and bacteriological examination, it is difficult to be accurate and timely. Given the domestic and foreign