Your kitten may need vaccinations and deworming as early as 8 weeks of age. Vaccinations are an important part of protecting young kittens from serious infectious diseases, some of which can be life-threatening. Because kitten vaccinations are typically given as a series at specific intervals, staying on schedule is essential for developing appropriate protection. Immunizations generally begin around 8 weeks of age and are repeated every 3–4 weeks until approximately 4 months of age, based on your kitten’s individual needs and veterinary recommendations.