It's been 53 years since the first measles vaccine was released in 1963, though most people alive today have gotten it bundled into the combined MMR prevention shot that first appeared in 1971. After a half-century of immunization, the World Health O...
Measles has been eliminated in the Americas, according to WHO
It's been 53 years since the first measles vaccine was released in 1963, though most people alive today have gotten it bundled into the combined MMR prevention shot that first appeared in 1971. After a half-century of immunization, the World Health O...