In 2022, about 93% of US kindergarteners had received state-required vaccinations for measles, mumps, and rubella (MMR); diphtheria, tetanus, and acellular pertussis (DTaP); polio; and varicella (also known as chickenpox), according to the Centers for Disease Control and Prevention (CDC). Another 2.6% received an exemption from one or more required vaccines.
Those four vaccines are part of the “combined 7 series'' of immunizations, which also includes vaccines for Hepatitis B, Haemophilus influenzae type b, and pneumococcal disease. The CDC recommends that all children get these vaccines by age 2. Data shows that 76% of children born in 2019 received the combined 7 series vaccines by the time they turned 3.
