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Dr. Stacy
Dr. Stacy, Veterinarian
Category: Cat Veterinary
Satisfied Customers: 1561
Experience:  7 years of experience as a small animal veterinarian
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Can I give my kittens a 3-way modified live vaccine that

Customer Question

Can I give my kittens a 3-way modified live vaccine that expired 2 days ago.
Submitted: 1 year ago.
Category: Cat Veterinary
Customer: replied 1 year ago.
Expert:  Dr. Stacy replied 1 year ago.
Thank you for your question. My name is***** and I would like to help with your question. If I understand you correctly... the vaccine was a few days expired, correct? So, as vaccines age their effectiveness is decreased. How fast or how much depends largely on if they are stored correctly (at the correct temperature). A vaccine that is 2 days past it's expiration date could be completely non effective or if it has been stored well it could still be at 95% effectiveness. There is no way to know for sure. If these kittens are in a high risk environment, such as a shelter, I would not use the vaccine. If it is a low risk environment like your home then you can give it. Just understand that it might be less effective. I would follow it with a second vaccine in 2 weeks. I hope that helps, but if you have more questions please let me know. If not, please rate my answer.
Expert:  Dr. Stacy replied 1 year ago.
Hi Kathryn,

I'm just following up on our conversation about your pet. How is everything going?

Dr. Stacy