As measles spreads across the Americas, outbreaks in Mexico and Canada have also turned deadly

By Deidre McPhillips, CNN

(CNN) — As measles cases in the United States continue to mount, neighboring countries Canada and Mexico are also experiencing significant outbreaks – all of which have been linked to at least one death.

On Thursday, the chief medical officer of health of the Canadian province Ontario announced that an infant who was born prematurely with a measles infection had died.

“The infant contracted the virus before birth from their mother, who had not received the measles, mumps and rubella (MMR) vaccine,” Dr. Kieran Moore said in a statement . “While measles may have been a contributing factor in both the premature birth and death, the infant also faced other serious medical complications unrelated to the virus.”

At least four people have died from measles in Mexi