【摘要】 本文综述了新城疫病毒的流行病学和病毒基因的系统发育情况 ,对不同 NDV毒株的强弱毒力鉴别方法进行了详细的介绍 ,将为新城疫的认识和防制提供新的理论基础和实践方法更多还原

【Abstract】 The epidemiological and phylogenic studies of Newcastle Disease virus(NDV) were summarized in this paper as well as the subject of identification of virulent and avirulent NDV strains. It would help to have a theory and pratical method of understanding and controlling of Newcasttle Disease.更多还原