The results indicated that the positive sample of Shigellae infection amounts to 28.3% (155/547)-33.74% (226/670), far higher than those by pullorosis (1.4%).

• 通过检测对鸡志贺氏菌病的发病率、流行地区、品种、日龄及其混合感染等进行血清流行病学调查。