But under PAHO's definition of elimination, borders matter. If, for example, the chain of measles that started in the U.S.

The United States is on the verge of losing its measles elimination status — a designation it has held for 25 years.

With the nation's measles-free status in doubt, this is what local public health officials are doing to bolster immunization ...

The massive measles outbreaks of 2025 are officially spilling over into the new year. Fourteen states have reported new cases ...

Hundreds of measles cases have already been reported in the U.S. since the start of the year, exceeding the pace of cases ...

Symptoms of measles include fever, cough, runny nose and pink eye, followed a few days later by a rash. These symptoms can emerge between seven and 21 days after exposure. In some people, measles can ...

The massive measles outbreaks of 2025 are officially spilling over into the new year. Fourteen states have reported new cases ...

After a year of ongoing measles outbreaks that have sickened more than 2,400 people, the United States is poised to lose its ...

Abraham, 71, was surgeon general of Louisiana, where he canceled that state’s long-standing mass vaccination promotion ...

As of Jan. 19, two confirmed measles cases had been reported in the state, according to the California Department of Public ...

Just one year after the worst measles outbreak in the country began in West Texas, public health officials said the U.S.