›› 2010, Vol. 37 ›› Issue (10): 166-169.

• 疾病防治 • 上一篇    下一篇

鹦鹉热嗜性衣原体感染SPF鸡和污染相关疫苗的初步调查

陈曦, 袁吉磊, 张圣, 曾汶曙, 陈慧, 何诚   

  1. (中国农业大学动物医学院农业部人畜共患病重点开放实验室, 北京 100193)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 何诚

Epidemic Preliminary Investigation of Chlamydophila psittaci in SPF Chicken and Contamination of the Associated Avian Vaccines

CHEN Xi,YUAN Ji-lei,ZHANG Sheng,ZENG Wen-shu,CHEN Hui,HE Cheng   

  1. (Key Laboratory of Zoonosis of Ministry of Agriculture,College of Veterinary Medicine,China Agricultural University,Beijing 100193,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-10-20 Published:2010-10-20
  • Contact: HE Cheng

摘要: 为初步调查SPF鸡感染鹦鹉热嗜性衣原体状况及相关SPF鸡胚源疫苗是否出现污染,本试验通过采集不同日龄的SPF鸡血清70份、SPF种蛋卵黄膜30份,收集市场上销售的SPF鸡胚源疫苗共41支,利用国产间接血凝试剂盒检测抗体,进口免疫荧光试剂盒分别测定其抗体、抗原阳性率,以评价SPF鸡鹦鹉热嗜性衣原体的流行状况和相关疫苗的污染状况。本试验结果显示,SPF鸡血清阳性率分别为31.4%(荧光法)、5.7%(间接血凝法);SPF种蛋阳性率33.3%,SPF鸡胚源疫苗平均阳性率31.7%。SPF鸡已经感染了鹦鹉热嗜性衣原体,且发现经鸡胚卵黄膜而传播病原的新途径,进而造成SPF鸡胚源疫苗出现衣原体污染。因此,加强SPF鸡鹦鹉热嗜性衣原体监测已势在必行。

关键词: 〗鹦鹉热嗜性衣原体; 抗原; 抗体; 疫苗; SPF鸡

Abstract: The preliminary investigation is to explore whether SPF chicken are infected by avian Chlamydophila psittaci (C.psittaci), then whether the associated avian vaccines contaminated with C.psittaci. In current study,70 serums from different ages of SPF chicken were collected to detect the antibody against C.psittaci using commercial indirect haemagglutination(IHA) test and immunofluorescence assay (IFA). Meanwhile, 30 egg yolk membranes were chosen for detecting the antigen presence by IMAGENTM Chlamydia kits.Moreover,41 batches of vaccines originated from SPF eggs were collected from local distributors in four provinces and chlamydial contamination was confirmed by IFA test kits. The seropositivity was 31.4% (IFA) and 5.7% (IHA) in 70 serum samples,respectively. The positive of antigen was 33.3% in SPF eggs and 31.7% in chicken vaccines,respectively.The antigen was identified in the egg yolk membrane. The above evidences indicated that Chlamydophila psittaci was prevalent in SPF chicken and it was vertical transmit way from the yolk membranes of SPF eggs to offspring as well as contamination for chicken vaccines. It is urgent to take some concreted measures to monitor the infection of Chlamydophila psittaci in SPF chicken.

Key words: Chlamydophila psittaci; antigen; antibody; vaccine; SPF chicken

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