The outbreak of the world's most infectious disease that began in West Texas has officially spread to a major city.

Republican Sen. Bill Cassidy wanted an assurance from Robert F. Kennedy Jr. before he would vote to put him in charge of the ...

Dr. Jeffrey Kopin, Chief Medical Officer for Northwestern Medicine Lake Forest Hospital, joins John Williams to talk about President Trump’s new pick for surgeon general, Zepbound beating ...

Measles cases surge in the U.S., with outbreaks across 31 jurisdictions. Experts warn of the virus's contagiousness and call ...

With over 1,000 measles cases reported across the U.S., health officials are issuing a warning as you make your summer travel plans.

Measles cases are on the rise nationwide. As of May 1, 935 Measles cases have been reported in 30 states, including Illinois.

The U.S. surpassed 1,000 measles cases Friday, even as Texas posted one of its lowest counts of newly confirmed cases since its large outbreak began three ...

New analysis of data from the Illinois Board of Education found less than half of Chicago Public Schools had herd immunity ...

New analysis found that less than half of Chicago Public Schools have herd immunity against the measles as of 2025. More than ...

North Dakota is the 11th state in the U.S. with a measles outbreak. The U.S. has 935 confirmed measles cases this year.

A Sun-Times analysis of state data found the rate of vaccinations has dropped sharply from the rate in 2019, when 90% of schools were at herd immunity.

CDPH has confirmed the first case of measles in a Chicago resident in 2025, in an adult Chicago resident who traveled ...