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.

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. https://t.co/Qhjs899owc

— NPR (@NPR) March 4, 2019