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.

The measles outbreak continues to spread throughout the U.S., sparking discussions about how best to protect children and other high-risk groups from the disease.

A prematurely born Canadian infant with measles died on June 5, in the province of Ontario. While officials have not confirmed the cause of death yet, it happened amid a measles outbreak that hit Ontario and Alberta,