Illinois maintained a nearly 97% vaccination rate against the measles among school-aged children, according to new data from public health officials.

CHICAGO (WLS) -- It's back-to-school season, and Cook County public health officials are launching a campaign to make sure kids are vaccinated. At a Southwest Side book bag giveaway Wednesday, Araceli ...

Vaccination coverage is eroding across the United States at the same time measles cases are surging, according to new county-level data compiled from state health agencies. Measles outbreaks are ...

CHICAGO (WGN) — Cook County Public Health has confirmed a third measles case. Health officials announced Tuesday that the third confirmed case of measles this year is a suburban Cook County man whose ...