Most measles cases in the U.S. come from people not vaccinated who traveled internationally then returned home to the states, the CDC says.

Twenty five countries have reported outbreaks, including newly affected Sierra Leone where infections are surging.

The West Sacramento patient may have contracted the infection locally, especially given recent wastewater detections.

WEST SACRAMENTO, Calif. — A West Sacramento resident has been diagnosed with measles, becoming the 13th confirmed case of the virus in California this year, according to Yolo County health officials.

The Yolo County Health and Human Services Agency’s Public Health Branch has confirmed that a resident of West Sacramento has ...

A West Sacramento resident who was diagnosed with measles, the first case this year across Yolo and Sacramento counties, may have exposed the virus to other patients and medical staff after arriving ...

A West Sacramento resident has a confirmed case of measles, health officials say, prompting a contact tracing effort in Yolo County.

Kansas now has 64 total measles cases, with 59 linked to a southwest Kansas outbreak. The outbreak spans eight counties, with Gray County reporting the most cases. Unvaccinated children are ...

AUSTIN (KXAN) — Six cases of measles have been confirmed in Williamson County, according to an update from the Texas Department of State Health Services (DSHS) on Friday. Williamson County and ...

(AP) — Measles cases inched up slightly in the U.S. this past week, with a new county impacted in Texas and Colorado reporting a new outbreak. There are 1,088 confirmed measles cases in the U.S ...

Kansas measles ... as the number of cases in the state continue to grow, according the Kansas Department of Health and Environment. Over the weekend, the KDHE and the Pawnee County Health ...