PPV causes reproductive losses in swine, characterized by stillbirths, mummifications, embryonic death and infertility (SMEDI). PPV is one of the most significant causes of reproductive failure in
pigs worldwide.1
Maternal reproductive failure is the major and only well-established clinical sign of PPV. Even under experimental conditions, gilts and boars infected with PPV remain clinically healthy, except for reproductive losses.1
Given the absence of more obvious clinical signs, PPV can be hard to diagnose. If reproductive consequences compatible to PPV infection are observed — like an increase in return-to-estrus index — consider PPV.1
Regular vaccination of breeding herds is the most reliable approach for protecting pigs against reproductive disease caused by PPV.