Before the video began, Kimmel began talking about why this is important, "There's a small but still sizable group of people who are choosing not to vaccinate their children.
He went on to say, "Here in LA there are schools in which 20 percent of the students aren't vaccinated because parents here are more afraid of gluten than they are of smallpox. As a result, we have measles again."
In the public service announcement, doctors offered their thoughts on vaccinations and urged parents to vaccinate their children.
"I'm a doctor and I believe in vaccinations," the doctors said.
"Remember that time you got polio? No you don't because your parents got you (expletive) vaccinated," one doctor said.
Kimmel published the video to YouTube on Friday and it already has millions of views.
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