What causes the recent global rise in measles outbreaks?

The recent global rise in measles outbreaks is because fewer people are getting vaccinated.

Imagine you're playing tag at a park. If most kids are running around, it's hard to catch anyone, but if a bunch of kids stay in the sandbox instead, the ones who are running can easily catch everyone else. That’s like what happens with measles: when lots of people aren’t protected by vaccines, the virus spreads faster.

Sometimes, parents think they don't need to vaccinate their kids because they hear stories about bad reactions, it's like thinking a cookie monster might pop out if you eat too many cookies. Also, some people believe that vaccines aren’t as important anymore, even though they’ve helped keep diseases like measles away for years.

When enough people stop getting vaccinated, the protection from vaccines weakens, it's like a wall with big holes in it. The virus can then go around and infect more people, especially those who can’t get vaccinated, like babies or people with weaker immune systems.

So, the rise in measles is like when too many kids stay in the sandbox, the game gets easier for the virus to win!