How We Source Pet Health Information
Our tools and guides follow published guidelines from veterinary organizations, cited by name and year on each page. We never suggest medication doses, never diagnose, and we date every page when its content really changes.
Which sources do you use?
- Dog vaccines: AAHA 2022 Canine Vaccination Guidelines, updated in 2024 to make leptospirosis a core vaccine for all dogs.
- Rabies: state and local law, and the AVMA Model Rabies Control Document (2023).
- Cat vaccines (for the coming kitten tool): 2020 AAHA/AAFP Feline Vaccination Guidelines.
- International reference: WSAVA 2024 Guidelines for the Vaccination of Dogs and Cats.
When a guideline changes, we update the page and its "Last reviewed" date. A date is never changed without a real change.
What will the site never do?
- Suggest a dose of any medication, including over-the-counter ones.
- Diagnose a condition or tell you that a vet visit is not needed.
- Issue or imitate official documents, such as a rabies certificate.
- Claim a veterinary review that did not happen.
Who reviews the content?
The tools and guides are written and kept up to date by Glaucio Lacerda, an independent publisher, from the guidelines listed above. They are not reviewed by a veterinarian.
That is why every page says which guideline it follows and leaves health decisions, such as vaccine dates and doses, to your veterinarian.
How do the tools calculate dates?
The puppy schedule places the doses inside the ranges of the AAHA table: at least 3 doses of the combined vaccine between 6 and 16 weeks, 2 to 4 weeks apart, and leptospirosis from 12 weeks.
The dates are an example plan for you to discuss with your veterinarian, who sets the real ones.
Images
The pet images and the animation were generated with AI and are marked as such in the page and in the image files.
Found a mistake?
Write to us through the contact page. We fix confirmed errors and update the page date.

