North America has three other large outbreaks. The longest, in Ontario, Canada, has resulted in 2,276 cases from mid-October ...

Health officials report that there has been no reported exposure in any county over the past 42 days. According to the OSDH, measles is a reportable disease in Oklahoma and a highly infectious disease ...

Measles cases have spread to 12 counties in Kansas, according to the Kansas Department of Health and Environment’s 2025 ...

Dropping vaccination rates and changes in U.S. vaccine policy have public health experts concerned that annual measles outbreaks could become more frequent.

Health officials in Colorado say the state’s measles outbreak is over, and the U.S. added just 10 confirmed cases nationally in the last week. Wednesday’s national case count stood at 1… ...