Questions and answers -PRRSV infection and the use of Porcilis PRRS

Frequently asked questions about herd problems and vaccination.

Herd problems and vaccination

• Having been free of PRRS until recently, I am now seeing much more respiratory disease in pigs. Antibodies against PRRSV have been detected in samples. Do I need to vaccinate all my finishing pigs or just the young ones?
• I have had PRRS in the finishing herd for years which animals should I vaccinate and when?
• I have been using Porcilis PRRS for several years and I have seen no sign of any problems in either the breeding herd or the finishing pigs. I am considering stopping vaccination. How can I tell if the virus is still present?
• I sell some gilts and some of my customers ask for PRRSV-negative animals. If I vaccinate all my young pigs will this affect the market for my stock?
• I want to make sure that all breeding stock joining the herd will not suffer PRRS disease. Can I vaccinate them and at what age should I do it?
• My gilt supplier is PRRS-positive. They deliver them at 90 kg. Can I still vaccinate gilts on arrival?
• I intend to purchase vaccinated gilts, when will I need to revaccinate these animals?
• I am going to use Porcilis PRRS in my breeding herd because we have just detected PRRS for the first time and it is affecting litter size and viability. I have heard that it is OK to vaccinate lactating sows. Can I vaccinate any pregnant animals?
• I am going to use Porcilis PRRS in my breeding herd because we have just detected PRRS for the first time and it is affecting litter size and viability. How soon after vaccination should I see an improvement?
• Once I have injected a sow when should I consider revaccination?
• It would be less stressful to my pigs if I could vaccinate with Porcilis PRRS at weaning (3 - 4 weeks of age), can I do this?
• My pigs are vaccinated against Mycoplasma at weaning, can I also use the Porcilis PRRS vaccine at weaning?

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