2005~2009년 국내 소모성 호흡기성 질환 가검물에서의 돼지생식기호흡기증후군바이러스 조사

Original Article : Survey on porcine reproductive and respiratory disease virus infection in pig, farms associated with wasting and respiratory syndrome during 2005~2009 in Korea

The lung and lymph node samples were collected from 786 pig farms associated with wasting and respiratory syndrome during 2005~2009. All samples were tested for the detection of porcine reproductive and respiratory syndrome virus (PRRSV) and the differentiation of its genotype using reverse transcriptase-polymerase chain reaction (RT-PCR). 643 farms (81.8%) of the pig farms examined were positive for PRRSV, of which 57.2% accounted for PRRSV type 1 and 70.2% accounted for PRRSV type 2. Furthermore, 37.5% of the farms positive for PRRSV, showed the coexistence of two genotypes. The results indicate that the PRRSV infections of single genotype or two genotypes are very common in Korean pig farms.