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Cat Vaccination Schedule 2026: Core Vaccines & Timing

Author: PetTrack TeamPublished At: 2026-06-175 min read
Cat Vaccination Schedule 2026: Core Vaccines & Timing

One of the most fundamental pillars of a healthy and long life for our pets is regular vaccination tracking. Especially as the maternal antibody protection in kittens wanes, they become vulnerable to life-threatening infectious diseases. In this guide, we detail the cat vaccination schedule, types of vaccines, and what to expect.

Starting the Cat Vaccination Schedule: When to Take the First Step?

A kitten's vaccination schedule typically starts when they are 6 to 8 weeks old. During this period, initial parasite treatments are administered. For your cat to be vaccinated, they must be completely healthy, fever-free, and weaned. Your veterinarian will perform a thorough general examination prior to any vaccine.

2026 Kitten Vaccination Schedule Table

In the table below, you can view the weekly breakdown of vaccinations a kitten should receive during its first year of life:

Age / PeriodVaccine / Treatment NamePurpose & Explanation
Weeks 6 - 8Internal & External Parasite TreatmentDe-worming (Crucial for vaccines to be effective)
Weeks 8 - 10Core Vaccine (FVRCP) - Dose 1Protects against panleukopenia, calicivirus, and rhinotracheitis
Weeks 8 - 10Leukemia Vaccine (FeLV) - Dose 1Protects against feline leukemia virus (Recommended for outdoor cats)
Weeks 10 - 12Core Vaccine (FVRCP) - Dose 2Booster dose to solidify immunity
Weeks 10 - 12Leukemia Vaccine (FeLV) - Dose 2Booster dose to complete FeLV protection
Weeks 12 - 14Rabies VaccineLegally mandatory vaccine (Repeated annually)
Weeks 12 - 14Microchip & Passport RegistrationLegal identification and pet passport issuance

Important Note: The success of your cat's immunization schedule depends on the timing between doses. Ideally, there should be 21 days (3 weeks) between booster doses. To never miss vaccine dates, you can use the automatic push notifications in the PetTrack mobile app.

Essential Cat Vaccines & Diseases They Prevent

Vaccines for cats are classified as core and non-core depending on severity and transmission risk:

  • Core Vaccine (FVRCP): Protects against Feline Parvovirus (Panleukopenia), Feline Calicivirus, and Feline Herpesvirus. An essential vaccine for every cat.
  • Rabies Vaccine: Protects against the deadly rabies virus. Crucial for public health and legally mandatory in most jurisdictions.
  • Leukemia Vaccine (FeLV): Protects against feline leukemia virus. Strongly recommended for multi-cat households or cats with outdoor access.

Post-Vaccination Care and Lethargy

After vaccination, your cat's immune system begins to work. During this process, symptoms like mild lethargy, sleepiness, slight fever, and loss of appetite are normal and typically resolve on their own within 24-48 hours. Mild soreness or a small bump at the injection site is also expected.

If post-vaccine lethargy persists beyond 48 hours, or if you observe allergic reactions such as difficulty breathing, persistent vomiting, or facial swelling, consult your veterinarian immediately.

Annual Booster Vaccinations

Once the initial kitten series is complete, annual boosters are required to maintain protection. Core, Leukemia, and Rabies vaccines must be repeated annually, and parasite treatments every 2-3 months as recommended by your vet. To track this schedule on your smartphone and view instant records logged by your vet, download the PetTrack mobile app for free on the App Store or Google Play.

Veterinary Disclaimer: The vaccination schedule presented in this article is for general informational purposes only. The most appropriate immunization program for your pet can only be determined by a licensed Veterinarian following a clinical examination.

Frequently Asked Questions

Q:When should kittens get their first vaccination?

The kitten vaccination schedule begins at 6-8 weeks of age with internal and external parasite treatments. The first injectable vaccine, FVRCP (Core), is typically administered at 8 weeks.

Q:How many doses of core vaccine do cats need?

Kittens require 2 doses of the core (FVRCP) vaccine spaced 21 days apart for complete immunization. Afterwards, it must be repeated annually as a single booster dose.

Q:Is rabies vaccination mandatory for cats?

Yes, by law in many countries (including Turkey), all domestic cats and dogs must be microchipped and receive rabies vaccinations annually.

Q:Is lethargy normal in cats after vaccination?

Mild lethargy, sleepiness, and decreased appetite are considered normal for 24-48 hours after vaccination. If symptoms persist beyond this window, consult your veterinarian.

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Manage the Vaccination Schedule in Your Pocket

Download the PetTrack app to track your kitten's vaccine doses and collaborate with your vet.