It has been shown that vaccination
against M. hyopneumonia or A. pleuropneumoniae 2–4
weeks in advance of infection with PCV2 prevented any
lesions associated with PCV2 infection,but the practical
Porcine Circovirus 1157
issues of this method make it nearly impossible to accomplish.
PPV vaccination does not reduce the severity of
PCVAD in coinfected pigs but a combined PPV and
swine erysipelas vaccine appeared to protect against
PCV2-induced reproductive failure