PCV2 vaccination – sows, piglets or both?

When vaccinating against PCV2 (porcine circovirus type 2), should we be vaccinating sows, piglets or both? A recent study by Fraile and others (2012) from the CReSA group in Barcelona have come up with some interesting answers. There was a lot of acrimonious debate when the first PCV2 vaccines came out, concerning whether sow vaccination or piglet vaccination was better. Each had their own advocates and in the presence of such a soul-destroying disease, both for the pigs and the producers, anyth