My pregnant cat has no vaccines. Is it safe to vaccinate her now?
Updated On September 23rd, 2025
Pet's info: Cat | American Shorthair | Female | unspayed | 6 lbs
Is it safe to vaccinate a pregnant cat if they have never been vaccinated before?
4 Answers
Most Helpful Answer
Published on June 28th, 2017
It is never recommended to vaccinate a pregnant pet. Modified live virus vaccines should never be given. Killed virus vaccines (such as rabies), may be given later in the pregnancy if necessary but only under the advice and guidance of your veterinarian.
9Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on August 24th, 2018
Vaccines are generally not recommended in pregnant animals unless there is a high risk of exposure (such as in a shelter setting). I would think it woulld be best to delay the vaccines a little and update them after the kittens are born, but you should check with your vet first to see what they would recommend. They know the overall risk in your area and her vaccine and health history.
1Pet Parents found this answer helpful
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Published on September 5th, 2017
Hi and thanks for using Petco Pet Education Center, formerly Petcoach! I generally do not recommend vaccinations in sick or unhealthy animals-it will not be beneficial if they are already ill. It is impossible to tell without seeing her (and even then, most times) if the mother will abort the new kittens or not. It depends on the severity of the illness. Likely the illness will require a trip for the animals affected to your local veterinarian for antibiotics and further treatment-usually if it is only a respiratory infection it is quite treatable. I recommend taking the affected ones as soon as you can-early treatment minimizes complications. Separate them from any other cats you have until they are well again-clean all food dishes and litter boxes they have used as well.
1Pet Parents found this answer helpful
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Published on February 27th, 2018
Ideally diagnosis of pregnancy should be performed before vaccinating as some of them could potentially affect the kittens. If your cat is already vaccinated will pass part of the immunity through the colostrum. Please ask your veterinarian to confirm diagnosis first. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
1Pet Parents found this answer helpful
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