Depending on the age of your pet and also the needs and area you live in can greatly influence the types of vaccinations and how often.  Vaccinations are typically started at 6 weeks of age, and the length of completion can vary again on size of your pet and what vaccinations they are receiving.  Vaccines are boosted every 2-4 weeks until the pet is protected and then boosted every year. Take your pet in for a veterinary exam and they can start your new kitten on a good schedule.