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My cat's sneezing/wheezing a month after nasal vaccine. Worried?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 10 lbs

Cat had feline distemper vaccine administered through the nose and has been sneezing/light wheezing for over a month, should I be concerned?

2 Answers

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on December 24th, 2018

Hello, thank you for your question about Hercules. When vaccines are administered locally, through the nose, they can sometimes cause development of mild clinical signs such as sneezing. However, I would not expect these signs to last for a month after the vaccine. Cats are also prone to development of viral upper respiratory infections, that often occur after a stressful event (like vaccination). It is possible that Hercules has a mild upper respiratory infection. If Hercules is otherwise acting normal and is having no bouts of respiratory distress I would recommend continuing to monitor him. If the signs progress or he becomes lethargic, inappetant, or has increased effort to his breathing I would recommend having him evaluated by your veterinarian as this could be a sign that he has another underlying condition such as asthma or bronchitis, both chronic (not uncommon) conditions in cats. Hope this helps, good luck!

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Other Answers

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on December 24th, 2018

    I'd be concerned about Hercules in that this isn't normal, and it could be he has a respiratory infection. As long as he is eating and drinking normally, you don't need to rush him into the vet; instead, take him in after Christmas. Best of luck, I hope this helps and happy holidays!

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    5Pet Parents found this answer helpful

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