Measles cases in the U.S. hit a new 34-year high

A folding sign that says "Measles vaccines and flu vaccines SC DPH" stands in the middle of a sidewalk with a distant building in the background

Measles cases in the U.S. hit a new 34-year high

The U.S. hasn’t seen measles numbers like this since 1992. An epidemiologist explains what’s driving the surge.