Canada eliminated measles in 1998. The U.S. followed two years later, in 2000. There are multiple criteria for losing an official measles elimination status, including the declines in vaccination rates observed in both countries. But the most significant factor is having ongoing measles transmission for a full year.

In June, the Pew Research Center found that 74 percent of Americans hold favorable views of Canada, while 34 percent view the country unfavorably. Their polling on Trump’s approval tells a similar story as Gallup. It began at 47 percent but dropped to 38 percent in August.

Monday marks a full year of continuous measles transmission in Canada, a key milestone poised to set the country back decades on a global health commitment.

Trump ended trade talks with Canada and raised tariffs in response to an ad from the government of Ontario against the president’s tariff policy. Enten told viewers that among Americans, Canada has a net popularity rating of 49 percent, compared to Trump’s net popularity rating of minus 10 percent.

The victim, identified as 27-year-old Amanpreet Saini, was reportedly found dead on October 21 at Charles Daley Park in Lincoln, Ontario.

President Donald Trump announced on Thursday night that he is halting ongoing trade talks with Canada over what he called its "egregious behavior."

Indian-origin Manpreet Singh is wanted in Canada in connection with the murder of a woman. Here's what we know so far.