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To read your pet's vaccine record, look at four things on each line: the vaccine name or abbreviation (like DA2PP for dogs or FVRCP for cats), the date it was given, the next due date, and the vaccine's serial or lot number. Together they tell you what your pet is protected against, since when, and when to go back.
That sounds easy until you're holding three printouts from three clinics, each with its own layout and its own alphabet soup. So here are the common abbreviations decoded, every field on a rabies certificate explained, and how to spot gaps before a kennel, groomer or new vet spots them for you.
The fields on a typical vaccine record
Most records share the same handful of fields, even when the layout looks nothing alike:
| Field | What it tells you |
|---|---|
| Vaccine name or abbreviation | Which diseases the vaccine protects against |
| Date given | When the dose was administered |
| Next due or expiry date | When the next dose is needed |
| Serial or lot number | Identifies the batch of vaccine used |
| Primary or booster | Whether it was part of the first series or a later booster |
| Veterinarian and clinic | Who gave the vaccine, and where |
| Pet details | Name, species, breed, sex, age, microchip number |
The most useful single field is the next due date. Check that every vaccine on the record has one.
How to read your pet's vaccine record: common abbreviations
Each letter in a combination vaccine stands for one disease. The Merck Veterinary Manual's vaccine abbreviation table decodes the common ones:
| Abbreviation | Stands for | Species |
|---|---|---|
| DA2PP | Distemper, adenovirus-2, parainfluenza, parvovirus | Dog |
| DA2LPP | The same, plus Leptospira | Dog |
| Lepto | Leptospira (bacteria); vaccines cover two or four types | Dog |
| Bb | Bordetella bronchiseptica, a cause of kennel cough | Dog, sometimes cat |
| CPIV | Canine parainfluenza virus | Dog |
| FVRCP | Feline viral rhinotracheitis, calicivirus, panleukopenia | Cat |
| FeLV | Feline leukemia virus | Cat |
| Rabies | Rabies virus | Dog, cat, ferret |
You'll also run into variations like DHPP or DAPP for the dog combination. The letters change between manufacturers and clinics, so if a line doesn't make sense, ask your clinic exactly which diseases it covers.
Which lines matter most
The core vaccines matter most, because every dog or cat should have them. In the World Small Animal Veterinary Association (WSAVA) 2024 guidelines, that's distemper, canine adenovirus and canine parvovirus for dogs, the D, A2 and P in DA2PP. For cats, it's feline parvovirus (panleukopenia), calicivirus and herpesvirus-1 (rhinotracheitis), which together make FVRCP.
Rabies is core wherever rabies is present, and in Ontario it's required by law for cats, dogs and ferrets three months or older.
Everything else, like Lepto, Bordetella or FeLV, depends on your pet's lifestyle and where you live. Don't be alarmed if the due dates on one record are all over the place. WSAVA notes that most non-core vaccines protect for about a year, while most modern core vaccines last many years.
Reading a rabies certificate in Ontario
A rabies certificate follows a legal format. Under Ontario's Regulation 567, the vet signs it, and it must show:
- Your name and address, and your pet's species, breed, colour, sex, age, name and any markings
- Any microchip or tattoo number, and your pet's approximate size
- The clinic address and the veterinarian's full name and contact information
- The vaccine's name and serial number, and the reimmunization interval from the product monograph
- The date given, whether it was a primary or booster shot, and the date by which your pet must be reimmunized
- The number on the rabies tag issued with it
Put the "reimmunize by" date in your calendar today. The law requires the booster by then. For more on using this certificate, see proof of rabies vaccination for daycare and boarding.
Spotting gaps and problems
Gaps are usually easy to spot once you know where to look. Start with any vaccine that has no due date, and ask the clinic when the next dose is due. Then look for due dates already in the past: your pet may be overdue, so call your vet before that kennel stay.
Check the puppy or kitten series too. WSAVA advises the last dose at 16 weeks of age or older, so a series that stops at 12 weeks is worth asking about. And read the pet details. A wrong name, sex or microchip number can cause real trouble at a border or a kennel, so ask for a correction.
Finally, if your pet's history is spread across more than one clinic, put it all in one place so nothing slips through. Our guide on how to get your pet's vet records explains how to request copies from past clinics.
Questions to ask your clinic about the record
Clinic teams answer these every single day, so ask away:
- Which diseases does each combination vaccine on this record cover?
- Which of these are core for my pet, and which are based on lifestyle?
- When is each one next due, and can you add any missing due dates?
- Is this the complete history, including vaccines given at a previous clinic or shelter?
- Can you email me a copy as a PDF after every visit?
Five minutes now saves a scramble the night before a kennel booking or a trip.
Keep the record readable and on your phone
In the free PetGrid app, you can add each vaccine with the date it was given and its next due date, and a reminder is set for you. The vaccine card shows the newest dose of each vaccine as a PDF, and AI record reading can help pull vaccines from a photo or PDF of an old record for you to check. Your vet's certificate is still the official proof.
Questions fréquentes
What does DA2PP mean on my dog's vaccine record?
DA2PP stands for distemper, adenovirus-2, parainfluenza and parvovirus. DA2LPP is the same combination with Leptospira added.
What does FVRCP mean on my cat's vaccine record?
FVRCP stands for feline viral rhinotracheitis, calicivirus and panleukopenia. These match the core cat vaccines WSAVA recommends for every cat.
What is the lot or serial number on a vaccine record?
It identifies the batch of vaccine your pet received. Ontario rabies certificates must include the vaccine's name and serial number.
Why do my pet's vaccines have different due dates?
Different vaccines protect for different lengths of time. WSAVA notes most non-core vaccines last about a year while most modern core vaccines last many years, so your vet sets each interval.
What does booster mean on a rabies certificate?
It means the shot was a repeat dose after the first, or primary, vaccination. Ontario certificates must say whether each rabies shot is primary or booster, and give the date by which the next one is due.
En bref
Once you know the fields, a vaccine record stops looking like code. For every line, find the name, the date given, the next due date and the serial or lot number. Decode the letters, make sure each vaccine has a due date, and ask your clinic about anything that still doesn't add up.
The PetGrid app is free for pet owners and keeps vaccines, due dates and reminders together for any clinic; the owner FAQ has more.
Gardez les dossiers, les vaccins et les visites de votre animal dans un seul endroit sûr. L'application PetGrid est gratuite pour les propriétaires d'animaux, avec ou sans clinique.
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Sources
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