我国一些地区羊衣原体血清流行病学调查分析

Surveillance and analysis of Chlamydia seroprevalence from goat and sheep in some regions,China

羊衣原体是由专性细胞内寄生的流产嗜衣原体引起的一种人兽共患传染病,危害严重。为了解近年我国一些地区羊衣原体的流行情况,特以间接血凝试验(IHA)对采自全国8个省(区)的羊血清样本进行检测,阳性率达46.09%(342/742)。其中湖北省、安徽省、山东省、新疆省、吉林省、四川省、宁夏省和甘肃省分别为60%(12/20)、42.86%(51/119)、52.75%(48/91)、40.13%(122/304)、51.91%(68/131)、30.56%(11/36)、67.74%(21/31)和90%(9/10),显示羊衣原体在我国流行严重。与以往资料相比较,感染率在全国呈逐年增加趋势。绵羊、山羊的抗体阳性率分别为47.27%(268/576)和42.28%(74/175),表明前者感染率要高于后者。

In order to investigated the prevalence of Chlamydia from sheep and goat in parts of China,we collected 742 blood samples from eight provinces(zone)by using the Chlamydia indirect hemagglutination test(IHA)antibody testing.The overall positive rate of sheep chlamydial antibody was 46.09%(342/742)in this eight provinces(zones),including Hubei 60.00%,Anhui 42.86%,Shandong 52.75%,Xinjiang 40.13%,Jilin 51.91%,Sichuan 30.56%,Ningxia 67.74%,and Gansu90%.Results showed that sheep Chlamydia spreads widely in our country,producing a serious threat to sheep husbandry.By comparing the serological test data of this experiment with the past ones,an upward trend is discovered year by year in infection rate of sheep Chlamydia.Blood samples of this test collected were from 567 sheep and 175 goats,and the seroprevalence in sheep and goats was 47.27%and 42.28%,respectively.The result showed that infection rate of sheep was higher than that in goats.