North America's three biggest measles outbreaks continue to balloon, with more than 2,500 known cases; three people have died ...

According to the World Health Organization (WHO), measles vaccination ... with more than 2,500 confirmed cases across the US, Canada and Mexico. Three deaths have occurred in the US and one ...

And a recent World Health Organization report said measles activity ... the United States and Mexico — and investigating the disease’s spread is labor-intensive and pricey.

These outbreaks, along with surges in Canada and Mexico, now account for the bulk of the 2,300 measles cases reported across the World Health Organization’s Americas region. The WHO warns that ...