Investigation on Infection of PCV2 in Taizhou Areas of Jiangsu Province

In order to investigate infection and harm extent of swine porcine circovirus 2( PCV2) in pigs in Taizhou of Jiangsu,and to control the prevalence of PCV2 in Taizhou areas. A total of 116 PCV2 clinical samples came from six different cities( districts) from 2011 to 2012 were tested in etiologic by the method of PCR. The test results showed that the total positive rate of PCV2 clinical samples was 53. 45%,and PCV2 existed in all the six places. The positive rate of the scale pig farms was 48. 33%,the positive rate of free-range farmers was 58. 93%. Thus,PCV2 was prevalent in pigs in Taizhou areas,and which should be paid more attention to.