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Before the advent of the measles vaccine, a dozen or so cases of measles would have been considered, well, too measly to make the headlines. That is because we all got the measles when we were kids. In fact, the Centers for Disease Control and Prevention (CDC) considers anyone born before 1957 to be immune to the measles.
“Before a vaccine was available, infection with measles virus was nearly universal during childhood with more than 90 percent of persons immune by age 15 years,” according to the CDC’s Pink Book.
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