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Bulletin No. 21 - Spring 2005
VirologyPMWS-PCV2-PCVD-PDNS
KIM J, JUNG K, CHAE, C
Prevalence of porcine circovirus type 2 in aborted fetuses and stillborn piglets.
Veterinary Record, 2004, Volume 155, Nº16, 489-492
The 350 aborted fetuses and stillborn piglets included in this study originated from farms in which neither PMWS or PDNS were observed. A screening for the presence of porcine parvovirus (PPV), porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2(PCV2) was carried out. PPV was detected in 90 cases, PRRSV in 12 cases and PCV2 in 35 cases. In addition, PPV and PCV2 co-infection was observed in 9 cases and PRRSV and PCV2 co-infection in 2 cases. The overall percentage of fetuses and piglets positive for PCV2 by PCR was thus 13.1% (46/350). Immunohistochemistry and in situ hybridization revealed the presence of viral antigen and viral DNA in lungs, thymus, liver, lymph nodes and spleen, but not in the heart. Lymph nodes and spleen are the organs recommended by the authors for the detection of PCV2 in fetuses. The precise role of PCV2 as a causal agent for reproductive failure should be further investigated.
