The Unintended Benefits Of Vaccines

A measles vaccination campaign in Manila this year. That vaccine is believed to confer an additional benefit beyond immunity to the virus. Vaccinations against other diseases — polio, tuberculosis, typhoid — may also confer an unintended protection.

For decades, scientists have observed an extraordinarily positive side effect among children who received the measles vaccine. Researchers are now finding that other vaccines confer added protections.

(Image credit: Alejandro Ernesto/Getty Image)

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