September 25, 2022
Cat Lethargic 2 Weeks After Vaccinations

My cat, Jasper, was lethargic for about two weeks after his vaccinations. The vet said it was normal and that he would eventually return to his normal self. However, I couldn’t help but worry about him during this time.

Was he in pain? Was something wrong? I decided to keep a close eye on him and see if there were any changes in his behavior.

If your cat is lethargic after vaccinations, it’s likely due to the vaccine itself and not the disease it was meant to protect against. Vaccines can cause side effects like fever, soreness, and fatigue in both people and animals. In most cases, these side effects are mild and last only a few days.

However, some cats may experience more severe reactions that can last for several weeks. If your cat is showing signs of lethargy or other illness after being vaccinated, contact your veterinarian immediately.

Cat Lethargic 2 Weeks After Vaccinations


Can a Cat Have a Delayed Reaction to a Vaccine?

Yes, it is possible for a cat to have a delayed reaction to a vaccine. While most reactions occur within a few hours of vaccination, some may not occur until days or even weeks later. The most common type of delayed reaction is called serum sickness, which can cause fever, swollen lymph nodes, and joint pain.

If your cat exhibits any of these symptoms after being vaccinated, please contact your veterinarian immediately.

How Long Will My Cat Be Lethargic After Vaccines?

Your cat may be lethargic for a day or two after receiving vaccines. This is normal and nothing to worry about. If your cat is still lethargic after two days, please contact your veterinarian.

How Long After a Vaccine Can a Reaction Occur in Cats?

Vaccine reactions in cats can occur anytime from immediately after vaccination to several days later. The most common reaction is a mild, temporary soreness at the injection site. Other reactions are rare and may include fever, lethargy, anorexia, and vomiting.

If your cat has any of these signs after being vaccinated, please contact your veterinarian.

How Long Do Side Effects of Cat Vaccines Last?

There is no one definitive answer to this question as it can depend on a number of factors, such as the type of vaccine administered and the individual cat’s reaction to it. However, in general, most side effects from feline vaccines are mild and resolve within a few days. More serious reactions are extremely rare.

If your cat does experience any adverse reaction after being vaccinated, be sure to contact your veterinarian immediately.

Is It Normal for a Dog to Become Lethargic and Weak after a Rabies Shot?

Cat Lethargic 1 Week After Vaccinations

Vaccinations are important for keeping your cat healthy, but sometimes they can cause side effects. If your cat is lethargic and doesn’t seem like her usual self one week after vaccinations, it could be a sign of a reaction. If you notice that your cat is acting differently after vaccinations, contact your veterinarian right away.

They will be able to determine if the lethargy is due to the vaccines or something else. In most cases, the side effects of vaccinations are mild and go away on their own within a few days. However, severe reactions are possible and require immediate medical attention.

Cat Lethargic 3 Days After Vaccine

If your cat is lethargic and doesn’t seem to be feeling well after being vaccinated, don’t panic. It’s not unusual for cats to experience some side effects from vaccines, and most of the time they are minor and resolve on their own within a few days. That said, it’s always important to keep an eye on your cat and call your veterinarian if you have any concerns.

Let them know if your cat is acting differently than usual or if the lethargy persists for more than a day or two. In the meantime, make sure your cat is drinking plenty of water and eating regularly. If they’re not interested in food, try offering them small meals frequently throughout the day instead of one large meal.

And give them lots of love and attention – sometimes that’s all a kitty needs to feel better!

How Long Do Cat Vaccine Side Effects Last

If you’ve ever wondered how long cat vaccine side effects last, wonder no more! We’ve got the scoop on everything from common side effects to more rare and serious ones. Common side effects of vaccines, such as fever, lethargy, and loss of appetite, usually only last for a few days after vaccination.

More rare but still possible side effects include seizures, allergic reactions, and even death in very rare cases. These more serious side effects are most likely to occur within the first 48 hours after vaccination. If your cat experiences any vaccine side effects, it’s important to contact your veterinarian right away.

They will be able to determine if the reaction is normal or something more serious that needs to be treated.

Cat Unwell After Vaccination

If your cat becomes unwell after being vaccinated, it’s important to seek veterinary advice as soon as possible. Vaccinations are an important part of keeping your cat healthy, but like any medical procedure, there is a small risk of side effects. The most common side effect of vaccination is a mild fever, which usually resolves within a few days.

Other potential side effects include lethargy, appetite loss and injection site reactions such as swelling and soreness. In very rare cases, more serious complications can occur. If you’re concerned about your cat’s health after vaccination, the best thing to do is contact your vet for advice.

They will be able to assess your cat and give you the best course of action.


Is your cat lethargic after getting vaccinated? Here are a few things to keep in mind. First, it’s important to remember that vaccinations are given to help prevent disease, and they can’t cause disease.

So if your cat is lethargic after getting vaccinated, it’s most likely due to something else. Second, some cats may be more sensitive to vaccines than others. If your cat has never been vaccinated before, or if he or she is very young or old, he or she may be more likely to have a reaction.

Finally, it’s possible that your cat’s lethargy could be due to the stress of going to the vet. If you think this might be the case, try to make future vet visits as calm and relaxed as possible.

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