| isolation of circovirus from lesions of pigs with postweaning multisystemic wasting syndrome. | postweaning multisystemic wasting syndrome (pmws), an apparently new disease, has been recognized in swine herds in western canada. young pigs with this disease have progressive weight loss, tachypnea, dyspnea, and jaundice, accompanied by interstitial pneumonia, lymphadenopathy, hepatitis, and nephritis. we examined more than 400 pigs from more than 70 herds in alberta, saskatchewan, and manitoba with cases of pmws. a small virus was isolated from a range of tissues from 8 of 8 affected pigs ex ... | 1998 | 9442952 |
| genomic analysis of porcine circovirus type-2 isolates in alberta pigs demonstrating clinical porcine circovirus associated disease (pcvad). | nineteen pigs with clinical signs of porcine circovirus associated diseases (pcvad) on 5 alberta pig farms were examined pathologically, including gross pathology, histopathology, and immunohistochemistry. polymerase chain reaction (pcr) for porcine circovirus type-2 (pcv-2) and sequence analysis was performed on tissue samples of 12 animals. results showed that new strains of porcine circovirus type-2 genogroup b were present in most pigs that were positive for pcv-2. furthermore, a mixed infec ... | 2010 | 20592846 |