Avian infectious bronchitis (infection bronchitis, IB) is an acute, highly contagious respiratory disease caused by infectious bronchitis virus. Chicken is the only natural host for the disease. Its characteristic is chickens coughing, sneezing and tracheal rale. In the chicken can also be runny nose, laying hens can lead to the decrease of egg production and quality. The serotype of the pathogen, new serotype appeared unceasingly, coupled with inappropriate immune procedure, often causes the chicken immune failure, causing the disease can not be effectively controlled, caused huge economic losses to the poultry industry. Are described from the aspects of pathogens, the disease epidemiology, diagnosis and treatment, in order to provide reference for scientific prevention and treatment of this disease.
追问软件翻译的吧 不好。