Seminole, West Texas, is at the center of what is threatening to become America's largest measles outbreak in a ...

Amid the ongoing measles outbreak, many people might be wondering: do I need to get a measles vaccine booster?

Dr. Helen Jiang tells PEOPLE why her practice is offering the MMR vaccine early — and why she's going to vaccinate her infant ...

Half of states in the US are now reporting measles cases, with the national total surpassing 800 cases so far this year, ...

Montana public health officials have found five cases of measles in Gallatin County, the first cases of the disease in the ...

Measles can erase the immune system's "memory" and cause a rare but fatal health condition. The MMR vaccine prevents these repercussions, evidence shows.

State health officials said fewer than 30 of the cases identified by the state were considered "actively infectious." ...

The Gallatin City-County Health Department said the five confirmed cases of measles are people who live in Gallatin County ...

Here's what to know about whooping cough amid the growing cases.

Kansas health officials confirmed five new cases of measles Wednesday in an outbreak in the southwest corner of the state that's linked to Texas and New Mexico.

As measles outbreaks popped up across the U.S. this winter, pediatricians waited for the nation's public health agency to ...

RFK Jr. claims the measles vaccine effectiveness wanes at a rate of nearly 5% a year, an assertion medical experts dispute.