Why are measles case counts climbing so high in Alberta? Experts weigh in – CBC

With 326 patients reported, Alberta has the 2nd highest tally in the country

May 12, 2025

Infectious disease experts are raising the alarm about measles spread in Alberta, warning case counts are far higher than neighbouring provinces and they’re increasing rapidly.

Alberta reported 116 more measles cases last week, pushing Alberta’s total of confirmed cases to 326 as of Friday.

“[It’s] really the largest growth in the number of cases of measles — at least per capita — of any place in Canada,” said Craig Jenne, professor of microbiology, immunology and infectious diseases at the University of Calgary.

“It’s going to be very difficult to rein this in.”

Alberta’s case counts are second only to Ontario, which has reported more than 1,400 cases since its outbreaks began in October.

Read more: https://www.cbc.ca/news/canada/calgary/experts-explain-measles-cases-climbing-alberta-1.7531482