Jon Stewart took aim at the Measles outbreak hitting the United States — and the "science denying affluent California liberals" who oppose vaccines.

Read more Hollywood's Vaccine Wars: L.A.’s "Entitled" Westsiders Behind City’s Epidemic

"They're not rednecks. They're not ignorant. They practice a mindful stupidity," Stewart said, mocking a Marin County Calif. woman interviewed on cable news who said if parents in her area opted against vaccines, they had a good reason for doing so.

"There's no red America. There's no blue America. There's just a needlessly sick America," Stewart said.

Read more Santa Monica Daycare Closes After Infant Contracts Measles

Stewart also took issue with CNN's coverage of the Measles outbreak, which has been traced back to Disneyland and has affected more than 100 people. Part of CNN's coverage included an airplane and holograms of the Measles virus hurtling toward a reporter.

The Daily Show

Get More: Daily Show Full Episodes,Indecision Political Humor,The Daily Show on Facebook