EPIDEMIOLOGIC STUDY OF PORCINE CIRCOVIRUS TYPE 2 (PCV2) AND PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS (PRRSV) IN A PORCINE INTEGRATION SYSTEM

摘要

Postweaning multisystemic wasting syndrome (PMWS) is a disease caused by porcine circovirus type 2 (PCV2) (1), although the virus has been found in farms without clinical evidence of PMWS (2). The latter observation suggests that PCV2 infection, withother co-factors, such as viruses, are needed to reproduce the clinical picture and microscopic lesions seen in natural occurring PMWS.