Can puppies have side effects from vaccinations?

Lethargy, mild discomfort, and a slight fever are the most common side effects pets get from vaccines. These can be characterized by your cat or dog not acting like themselves.

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Report Moderate to Severe Puppy Shots Reactions

If your puppy has a negative reaction to his vaccinations (even if it is only a mild one), it increases the likelihood that he will have a similar or worse reaction the next time he receives his shots.

It’s important to tell your veterinarian what happened so that it can be noted in your dog’s medical records. Depending on how severe the reaction is, your little one might not be safe for additional vaccinations or special measures might need to be taken when they are given.

It’s crucial for researchers to have access to accurate adverse reaction statistics in order to increase the safety of canine vaccines.

The Center for Veterinary Biologics (CVB) or the vaccine manufacturers are currently only notified of a small percentage of the reactions.

By informing your veterinarian of any mild to severe reaction your little Rascal has to his puppy vaccinations, you can help with this. and by requesting that he notify the CVB as well as the vaccine manufacturer

This page has an electronic form for reporting this type of information and you can share it with your veterinarian if he is unfamiliar with the process… USDA Adverse Event Reporting.

Despite the AHA’s Canine Veterinary Task Force asking veterinarians to report reactions, the information is frequently not forwarded to the vaccine manufacturer or the CVB because veterinary clinics are busy places. but you can do this yourself!.

All you need from your vet is the following information for each vaccination your puppy received:

Call each manufacturer and report the reaction.

Afterward, you can either use the USDA’s Adverse Event Electronic Report form (same link as above) or call the Center for Veterinary Biologics at 1-800-752-6255 to inform them of the issue.

  • You should have be told about the possibility of puppy shots reactions PRIOR to vaccination
  • You need to consent to shots and understand the risks (informed consent)
  • You should be asked if your pup has had any previous vaccinations
  • You should be asked if your puppy has ever had an adverse reaction to his shots
  • Your puppy should NEVER be vaccinated if he isnt 100% healthy at that time
  • You should not feel pressured or forced into vaccinating your puppy
  • It’s perfectly acceptable to find a new veterinarian if your current one doesn’t follow these safe practice guidelines or if you feel more at ease with one.

    Choosing a veterinarian with a holistic or homeopathic practice is also an option.

    At the site of a recent vaccination, a tiny, firm swelling under the skin could appear. It should start to disappear within a couple weeks. Contact your veterinarian if it lasts longer than three weeks or seems to be getting bigger.

    It is common for pets to experience some or all of the following mild side effects after receiving a vaccine, usually starting within hours of the vaccination. If these side effects last for more than a day or two, or cause your pet significant discomfort, it is important for you to contact your veterinarian:

    If your pet has ever had adverse reactions to a vaccine or medication, you should always let your veterinarian know. Wait 30 to 60 minutes after vaccination before bringing your pet home if you’re unsure.

    Allergic reactions, which are more severe but less frequent side effects, could appear minutes to hours after vaccination. These reactions can be life-threatening and are medical emergencies.

    Which Puppies Are Most At Risk?

    Any puppy could react poorly to a vaccination or experience unpleasant side effects.

    However, a number of risk factors also exist that make some puppies and dogs more likely to react negatively.

    According to research, young, male, small breed puppies (or dogs) who receive numerous vaccinations are at the highest end of the risk spectrum.

    They are the group most likely to experience both short-term and long-term negative reactions to puppy shots and/or booster shots.

    Breeds in particular that are more susceptible to adverse vaccination reactions include:

  • Akita
  • American Cocker Spaniel
  • Australian Shepherd
  • German Shepherd
  • Golden Retriever
  • Harlequin Great Dane
  • Irish Setter
  • Kerry Blue Terrier
  • Miniature Dachshund
  • Old English Sheepdog
  • Poodle
  • Portuguese Water Dog
  • Rhodesian Ridgeback
  • Scottish Terrier
  • Shetland Sheepdog
  • Shih Tzu
  • Vizsla
  • Weimaraner
  • Additionally, purebred dogs with specific coat colors appear to be more susceptible to adverse vaccine reactions, including:


    What are the side effects of vaccines for puppies?

    The most frequent adverse reactions that pets experience after receiving vaccinations are lethargy, a mild fever, and minor discomfort. This can be identified by your pet acting differently than usual. The symptoms should be mild and only last one or two days as this is a common reaction to vaccinations.

    Do Puppies feel unwell after vaccinations?

    The immune system is stimulated by vaccination, which may result in a mild fever in your pet. This is most frequently observed following initial vaccinations, though it can also occur following a booster vaccination. After their appointment, your pet might feel a little sleepy; if this happens, don’t panic.

    How long do puppies have side effects from vaccines?

    Reactions to these vaccines often mimic the signs of a common cold, such as coughing, runny nose, and sneezing. You can anticipate your dog to get better from these symptoms in a day or two. Ask your veterinarian for advice if the symptoms worsen or your dog takes longer to recover.

    What should I watch after puppy shots?

    The most typical response seen in dogs following vaccinations is general discomfort and lethargic behavior. As your dog’s immune system works and responds to the vaccination, this might be accompanied by a slight fever. These minor symptoms are acceptable and normal, and they should only persist for one or two days before disappearing.