Petco Text Logo
Petco Pet Logo

Can a blood test prove my dog's past vaccinations if records are lost?

Updated On September 23rd, 2025

Pet's info: Dog | Jack Russell Terrier | Male | 9 months and 5 days old | 12 lbs

My pup, Woody has his vaccination shots accordingly to the previous owner but he misplaced the papers to provide proof of his shots for me because in the state of Wisconsin, it's required by law to register your pets with proof of the shots required for the pets. I want to know if it's possible to determine what shots that was given to Woody by providing a blood draw or any procedures that can determine which shots was given to him?

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Elizabeth

Veterinarian

Published on August 6th, 2019

You can determine disease resistance with antibody titers and this can give you an idea of potential vaccines but you can't determine dates or vaccine exposure vs natural exposure. Your best option is to try to learn where Woody received his vaccines. You may be able to get a copy from that clinic. Otherwise, repeating the vaccines will not hurt Woody. Then you have a record and the proof of vaccination needed to register Woody. I hope this helps and please feel free to post any additional questions.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored