河南地区猪圆环病毒3型的PCR检测

PCR detection of porcine circovirus type 3 in the Henan area

为调查河南地区猪圆环病毒3型（PCV3）的感染情况及流行特点,对2015-2017年河南不同地区猪场采集的152份临床样品进行PCR检测PCV3。结果显示,152份临床样品中检测到46份PCV3,阳性率为30.26%（46/152）,在开封、新乡、鹤壁等7个地市均检测出PCV3,说明PCV3在河南省部分地区存在并且已呈现流行趋势;152份临床样品中有105份样品PCV2为阳性,阳性率为69.08%,且所有PCV3阳性样品均可检测出PCV2,推测PCV3与PCV2的共感染可能广泛存在。本研究对河南省猪圆环病毒病的防控提供基础信息。

In order to investigate the infection and spread of porcine circovirus 3 （PCV3） in the Henan area, 152 clinical samples were collected during the 2015 ~2017 period and were detected for PCV3 using PCR. The results showed that a total of 46 clinical samples were positive for PCV3, with a positive ratio of 30. 26% （46/152）. PCV3 was detected in samples from Kaifeng, Xinxiang, Hebi and other are-as. These results indicated that PCV3 had emerged and spread in quite some parts of Henan Province. 105 of 152 clinical samples were detec-ted to be positive for PCV2, with a positive ratio of 69. 08% （105/152） ; and PCV2 could be detected more or less in all the PCV3 positive clinical samples, suggesting that PCV3 was in co-infection with PCV2. This study provides information support for prevention and control of PCV3 in the Henan area.