Measles is caused by a highly contagious virus that's airborne ... How many cases are there in Arizona? Arizona has four cases in Navajo County. They are linked to a single source, the county health ...

Health officials in Colorado say its measles outbreak is over. The U.S. added 10 new cases this week for a total of 1,319. States with active outbreaks include Arizona, Georgia, ...

FILE - A health worker talks to people before administering measles tests outside Seminole Hospital District, Feb. 21, 2025, in Seminole, Texas. (AP Photo/Julio Cortez, File) Health officials in ...