High prevalence of porcine circovirus viremia in newborn piglets in five clinically normal swine breeding herds in North America
Porcine circovirus type 2 (PCV2) has been associated with a number of disease manifestations in pigs including reproductive failure (1). It has been demonstrated that PCV2 can be transmitted horizontally and vertically; however, it is unclear to what extent vertical PCV2 transmission occurs under field conditions especially in farms subclinically infected with PCV2.
The objective of the current study was to evaluate the rate of intrauterine PCV2 infection in healthy piglets born on commercial farms in North America and to further characterize dam viremia, dam antibody levels, and piglet antibody levels.
Huigang Shen; Darin Madson; Tanja Opriessnig
Iowa State University, Ames, IA, USA
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