Canada

Doctors are urging public health officials in Ontario and Alberta to step up vaccination and messaging efforts as measles outbreaks in those provinces continue to grow.

Ontario reported 223 new confirmed and probable infections of measles over the past week. As of May 2, a total of 210 confirmed measles cases were reported to Alberta Health.

"That's the largest single week increase since the outbreak began in October of 2024," said Dr. Sarah Wilson, a public health physician with Public Health Ontario.