Kittens should start receiving their vaccinations when they are about 6 to 8 weeks old, and the vaccination schedule typically runs until they are about 16 weeks old. The first set of vaccinations is usually given every three to four weeks until the kitten reaches 16 weeks of age. The core vaccinations for kittens include feline distemper (panleukopenia), feline viral rhinotracheitis (feline herpes virus 1), calicivirus, and rabies. Rabies vaccination is usually given once at 12-16 weeks of age. It's important to consult with a veterinarian to determine the specific vaccinations your kitten needs based on its lifestyle and potential exposure to diseases