Until recently, Measles had been all but eradicated in the US, but due to recent damage to our herd immunity, more and more outbreaks are popping up around the US. The latest one to hit the news could be tied to the biggest movie in theaters, Avengers: Endgame.

The incident happened at an Endgame screening in Fullerton, California when a 20something woman who had contracted the disease overseas may have potentially exposed several hundred people over the three-hour film. Authorities have stated that she was unaware that she was sick at the time of the film. Regardless of that fact, everyone who went to AMC movie theater on Lemon Street between 11 p.m. Thursday and 4 a.m. Friday may have been exposed. This is in addition to her co-workers and the people in a hospital emergency room that she may have exposed while contagious.

It’s too bad she didn’t go to a screening of Hellboy instead, at least then she would have been the only one the theater.

Here’s a quick video on Herd Immunity…