NEW YORK, May 1 (Xinhua) -- North America's three biggest measles outbreaks continue to balloon, with more than 2,500 known cases, reported The Associated Press (AP) on Thursday, noting that three people have died in the United States and one in Mexico.
"It started in the fall in Ontario, Canada; then took off in late January in Texas and New Mexico; and has rapidly spread in Chihuahua state, which is up to 786 cases since mid-February," said the report.
