Measles can erase up to 73 percent of your immune system’s memory

My sister says that there is no real difference between a child who gets vaccinated against measles and one who simply gets measles, since either way the child ends up being immune. Is she right?

I wouldn’t describe it as “just getting the measles.” In the United States, about 1 in 5 unvaccinated people who contract measles are hospitalized, and 1 to 3 in 1,000 infected children will die, according to the Centers for Disease Control and Prevention.