PCV2 shedding after challenge by infected semen in PCV2 vaccinated and non-vaccinated conventional gilts

摘要

Porcine circovirus type 2 (PCV2) is endemic in swine herds and both viremia and shedding are demonstrated in newborn as well as in adult pigs. The reduction of PCV2 circulation is a protective strategy to be attained by several direct and indirect prophylactic measures. The objectives of this project was to evaluate the viremia, the virus shedding and the viral load in maternal tissues and fetuses in conventional gilts vaccinated or non-vaccinated against PCV2 coming from a PCV2 positive farm, and challenged during artificial insemination by experimentally PCV2 infected semen.