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Ask the Vet About Vaccine Side Effects in Dogs and Cats

Dr. MichaelDym
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While efforts are made to answer all questions as quickly as possible, if an immediate answer is required or if your pet is in need of urgent or emergency care, contact your pet's veterinarian immediately.

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Showing 1 - 15 of 105
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01
DateAug 19, 2021
CategoryVaccine Reaction
Pet TypeCat
Topicvaccine for pregnant cat
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Question:

Hello, My friend is taking care of a pregnant cat (from the street). The cat tested negative for FeLV, FIV and parvo virus.  Can the cat get vaccine and rabies shot while pregnant? Will it affect her kittens? Please advise. Thank you.

Answer:

No - most vaccines are not labeled for use while pregnant and some can cause serious problems with the fetuses.

02
DateAug 5, 2021
CategoryVaccine Reaction
Pet TypeDog
Topicvaccine
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Question:

Can I refuse the bordetella vaccine for my adult dog if she is not boarded?

Answer:

Yes, definitely - this is not considered a core vaccine that all dogs need - only the more social ones that go to be groomed or boarded.

03
DateAug 3, 2021
CategoryVaccine Reaction
Pet TypeCat
TopicSeizure Vaccine Reaction
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Question:

My kitten got his first vaccines 2 weeks ago. This Wednesday he had a seizure. He’s recovered fully already, but I’m wondering if there’s any chance that the vaccines caused the seizure? Also, is it safe for him to get his regular boosters 2 weeks from now?

Answer:

It's hard for me to relate the seizure to the vaccine, that far away from when it was given but call and speak directly to the manufacturer's veterinarian for the best advice.

04
DateJul 21, 2021
CategoryVaccine Reaction
Pet Typenull
TopicShots
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Question:

My puppy got a 6 in 1 shot at 6 weeks old. He is currently 14 weeks.. when should he get another one

Answer:

He needs one now and then another in 3-4 weeks.

05
DateJul 13, 2021
CategoryVaccine Reaction
Pet Typenull
TopicSeizure
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Question:

We got our dog vaccinated 2 days ago. She got 7 shots total do to boarding her in a few weeks and she needed her normal as well. Today, she had a 5min whole body seizure, Could this be caused by the vaccines?

Answer:

Possibly - definitely contact your veterinarian so they can note it in her chart and they will want to contact the manufacturer of the vaccines to let them know as well.

06
DateJul 6, 2021
CategoryVaccine Reaction
Pet Typenull
TopicVaccine reaction
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Question:

For the last two years, my dog has had symptoms of gastrointestinal upset within 2 weeks of receiving vaccines. Symptoms include off and on vomiting bile and diarrhea with bright red blood and mucus. He’s feeling better now. Now, a week after symptoms started, stool is formed at beginning and loose at the end, and is now yellow. He’s finally eager to eat again and is becoming more playful. At first, we thought he ate something he shouldn’t have, but could this be a vaccine reaction? I’m kind of afraid to give him vaccines next year.

Answer:

It is possible - definitely speak with your veterinarian about this - most dogs only need most vaccines every 3 years, not every year, but it depends on many factors (where you live, your dog's lifestyle, etc.)

07
DateMay 31, 2021
CategoryVaccine Reaction
Pet Typenull
TopicVaccine reaction limb weakness
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Question:

My 3 year old Cavalier KCS got a few vaccines all at once (including Lyme, flu, lepidopterist sp?) a couple weeks ago and soon developed weakness in hind quarters and pain. Took back for exam and X-rays all neg. doing somewhat better but Still can’t jump up. Vet not mention possible reaction. Now I read all this and need help with TMT.

Answer:

I don't know what you mean by "TMT" but contact the manufacturer of the vaccines directly with concerns about a possible vaccine reaction.

08
DateApr 25, 2021
CategoryVaccine Reaction
Pet Typenull
TopicThrowing Up 24 Hours After Vaccine
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Question:

My dog was vaccinated for parvo yesterday and today he threw up clear. He ate one meal and was drinking water but has been throwing up since

Answer:

No, vomiting is not normal after a vaccine. Occasionally it may be due to the motion of the car but this far after the car ride, it would be ideal to have your veterinarian recheck him. Even if he is feeling better by the time you get this, let your veterinarian know how he reacted to that vaccine - they will want to note it in his chart.

09
DateApr 8, 2021
CategoryVaccine Reaction
Pet Typenull
TopicBordadella bronchiseptica oral vaccine
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Question:

Can this vaccine be put on food such as a small piece of bread? Our abused shelter dog has behavioral issues when he feels threatened. I believe using the syringe will cause him to bite us. He is greatly motivated by food and will take this vaccine easily on a small, even bland, treat such as bread.

Answer:

Call and speak directly with the manufacturer about that.

010
DateApr 3, 2021
CategoryVaccine Reaction
Pet Typenull
TopicReaction to shots
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Question:

We got our new dog shots today. Bordetella, initial Lyme vaccine and for leptospirosis. He is very lethargic And he’s trembling. Shot was administered bout 2 hours ago. He’s a2yo male yorkiepoo. He moved in w us approx 3 weeks ago and no past history. Last wwwk he had rabies,Dhpp and micro chipped last week. Is the clumsiness and trembling normal

Answer:

A low grade temperature can be normal for some dogs but if it persists, you should see your veterinarian for a recheck. "Clumsiness" is definitely not normal. (Let your veterinarian know how he did and, in the future, they will not want to give both of those on the same day to him.)

011
DateMar 19, 2021
CategoryVaccine Reaction
Pet Typenull
TopicSoreness
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Question:

My maltese puppy just received a vaccine today and when I pick her up she cries when I touch her stomach. Is this a normal side effect?

Answer:

A little achy after vaccines can be normal - if it is anything too extreme, have your veterinarian recheck her.

012
DateMar 12, 2021
CategoryVaccine Reaction
Pet Typenull
TopicSafe Travel with Cats during Covid
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Question:

I have to travel by car to Southern California with my two cats. What is the best way to keep them safe, and what vaccinations would you suggest I give them before I go? One is 3 1/2 yrs old and the other is almost 3 yrs old. Both are healthy and current on their rabies shots. Thank you for your help.

Answer:

If they aren't coming into contact with any other cats, Rabies is the only one they really need to be up-to-date on. As far as the ride, few suggestions: (1) Feliway calming travel wipes: we don't really fully understand why these work so well to calm cats but they just do. (2) Don't feed shortly before travel. (3) If you have Amazon unlimited music, try playing Through a Cat's Ear music in the car. It's been scientifically proven to calm cats, and is free for Amazon users. (4) The floorboard behind the passenger seat is the most secure location for your cat's carrier in your car.

013
DateMar 10, 2021
CategoryVaccine Reaction
Pet Typenull
TopicLethargic
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Question:

My cat had her vaccines and was dewormed a week ago and is not feeling well now She is 9 year old.

Answer:

An adverse reaction to the vaccine would more than likely start almost immediately or within a day or 2 unless something else is going on. At her age, if it continues, have your veterinarian recheck her and run some bloodwork on her. Even if all the blood work comes back normal, it is good to establish baselines for everything the blood work checks for (red count, white count, platelet count, blood sugar, kidney enzymes, liver enzymes, electrolytes, etc etc.).

014
DateMar 9, 2021
CategoryVaccine Reaction
Pet Typenull
Topicvaccinations for older dog
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Question:

I'm hearing that now it is no longer recommended to have older/senior dogs vaccinated annually - is this accurate? I usually do 3-yr rabies, but what about lepto, parvo, etc.? Thank you

Answer:

Yes, that is accurate. Check with your veterinarian about lepto though to see if (1) your dog is at risk of exposure and (2) whether the vaccine that they carry is labelled as a one year only vaccine.

015
DateMar 9, 2021
CategoryVaccine Reaction
Pet Typenull
TopicParvo
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Question:

My puppy had his first vaccination and was scheduled today for his second. However 4 days ago he was diagnosed with parvo, only symptoms was diarrhea for two days otherwise acted completely normal. My question is what Is the likelihood that the test was a false positive, I wonder should he still get the second dose even though the vet tech says no?

Answer:

I would definitely give him a few more days for his immune system to fully recover so it can recognize the vaccine. Just keep him away from "high-dog-traffic" areas which parvo is more likely to be contracted until he is done with his vaccine series. The vet tech is correct - confirm with the veterinarian and discuss what day would be ideal (depends on a lot of things: how long ago his last vaccine was, how sick he was, what his blood work looked like, etc.)

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