Are there any risks or side effects associated with kitten vaccines? - The Waggin' Train Veterinary Clinic

There are always risks with vaccinations, let's be honest. I mean, you're putting a foreign substance into the body, whether it's human, dog, cat, any of those things. There can be allergic reactions to those ingredients. So yes, there always is that possibility. The way I look at things like this is, does the potential benefit outweigh the potential risk? And I'm a big vaccine guy, so I don't even have to think about it. I think that the benefit of those vaccines far, far, far outweighs the risk of a potential reaction or a side effect from those vaccines.

Are there any risks or side effects associated with kitten vaccines? - Advanced Animal Care

We tend to see sometimes that they can be a little sore at the injection site. It's not uncommon—if you go to get your annual flu shot or any other vaccine and your arms are a little sore for a day, so we can notice that. Sometimes they can be a little sleepy too. Vaccines drain you of your energy for 24 hours, and those are some things that we can notice, but for the most part, I don't feel like I ever have owners feel like they have a concern.

Are there any risks or side effects associated with kitten vaccines? - Animal Hospital of Statesville

Yes. Great question. I'll just start by saying that when we give a vaccine to a kitten, we ask the kitten’s immune system to respond to that vaccine and mount a response so that if they're ever exposed to that disease, they can fight it off. That being said, some are over-reactors, and the immune system may overreact. That would be one of those side effects that are not common but can be seen. And then the lesser side effects would be just injection site soreness or tenderness. They might be a little lethargic. You can think about how you feel if you run a fever. You just don't feel well. You feel a little crummy. Sometimes that can happen for a day or two after their vaccines.