Vaccination is one of the most important strategies available to help prevent infectious diseases such as measles, flu, mumps and pneumococcal infections such as meningitis. Learn more about vaccines for babies and immunisation programs here.

California took on anti-vaxxers, and won

California became the first US state to ban all personal belief exemptions for its school vaccination requirements and a study shows how it slashed the number of preschoolers who didn't have their required immunisations.

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