西藏林芝新城疫病毒分离与初步鉴定

Isolation and Identification of Newcastle Disease virus in Nyingchi of Tibet

西藏林芝地区某牧场出现藏鸡大量死亡情况,临床症状与新城疫极为相似。笔者采集病料,根据病理剖检结果和实验室细菌学、血清学、病毒学检测结果,鉴定该牧场发生新城疫疫情。分离到的毒株血凝价为28,能被ND阳性血清抑制,不能被禽流感(H9和H5)阳性血清抑制。

A large number of Tibet chicken died in a ranch located in Nyingchi Prefecture of Tibet. The disease was identified to be the Newcastle disease according to the results of clinical symptoms,The patho anatomical examination, bacteriology,orrhology and virological examination were conducted to prove to happen Newcastle in this ranch. The hemagglutination level is 2^8 in isolated strains. It can be inhibited by ND - positive serum, can not be inhibited by avian influenza A （ H9 and H5 ）