I vaccinate for parvo, lepto, and pox (we had pox here first time we ever raised a pig) with FarrowSure Plus. Lo and behold if I don't have a case of the flu in my pen right now. I know it isn't a deadly problem (not that it is good for sows that are already taxed with lactation) but it puts a damper on any sales or butcher until they are fine again. Once this is over I'll vaccinate my keepers. What do you all vaccinate for?