Vaccination works by asking the immune system to recognise a disease threat before the real disease appears. Most dogs and cats go home, eat normally and carry on with very little change. Some are a little quieter, tender at the injection site, or mildly sleepy for a short time.
That does not mean reactions should be ignored. A good vaccination plan includes knowing what is expected, what is not expected, and what to tell us before the next vaccine is given.
For a day or so after vaccination, some pets may be slightly tired, mildly tender, or less enthusiastic than usual. A small local swelling can also occur. These changes should be mild, improve quickly, and not stop the pet from breathing comfortably, drinking, toileting or settling.
Let your pet have a quieter day after vaccination. Avoid strenuous exercise, big training sessions, boarding drop-off, grooming battles or other stressful events straight after the appointment if you can. If your pet seems more than mildly uncomfortable, or you are unsure whether what you are seeing is normal, contact us.
Call promptly if your pet develops facial swelling, hives, repeated vomiting, diarrhoea, collapse, weakness, pale gums, breathing difficulty, severe pain, marked lethargy, or a reaction that appears quickly and is getting worse. These signs are not the ordinary tiredness some pets show after vaccination.
If your pet has ever had a suspected vaccine reaction, tell us before the next vaccination visit. The exact timing, signs, treatment needed and vaccine given all help decide whether the next plan should be changed.
A previous reaction does not automatically mean a pet can never be vaccinated again. It does mean the risk and benefit should be reviewed carefully. Depending on the situation, we may space vaccines apart, avoid giving several vaccines on the same day, choose a different product where appropriate, monitor for longer, or use medication precautions when there has been a true allergic-type reaction.
The goal is still protection from serious infectious disease. The difference is that we plan the appointment around the individual pet, rather than pretending their history does not matter.
Understand how vaccination decisions are guided by New Zealand policy, international guidance and individual risk assessment.
Learn how the staged puppy course builds protection during a vulnerable period.
Learn why kitten vaccination timing matters and how early visits support health and development.
Use this when you want to understand adult booster timing and why different vaccines have different intervals.
Helpful when records are missing and the question is how to rebuild protection without guessing.
Before vaccination, tell us if your pet is unwell, pregnant, on immune-suppressing medication, recently had another vaccine elsewhere, has a history of allergy or collapse, or has reacted to a vaccine before. Also tell us if you need records for boarding, daycare, training, travel, insurance or adoption paperwork.
That information helps us decide whether to vaccinate that day, postpone, separate vaccines, check records first, or plan monitoring. It also helps prevent avoidable last-minute problems when a boarding or training provider asks for proof of vaccination.
If your pet seems unwell after vaccination, or you are worried about a previous reaction before the next appointment, contact us. We would much rather talk it through early than have you wait at home uncertain.
Vaccination decisions work best when they sit inside a full health check rather than a quick injection-only visit.
Calmer handling and pain-aware care help vaccination visits feel safer for pets and owners.
New puppies and kittens often need vaccination, parasite prevention, nutrition and development advice together.
