The numbers may not be as bad as they could've been
In the span of four months, Manitoba has become the unlikely epicentre of a national measles resurgence, recording more cases than the rest of Canada combined — a crisis rooted not in the failure of medicine, but in the erosion of collective trust in it. The province's Southern Health region, where fewer than six in ten children are fully vaccinated, has become a quiet illustration of how preventable suffering finds its footholds in the gaps between communities and public health. As large gatherings continue to serve as accelerants and pockets of unimmunized residents persist, officials watch the horizon with cautious uncertainty, knowing that a disease humanity once nearly vanquished is now writing new chapters in a place it should no longer reach.
- Manitoba has confirmed over 560 measles cases in just four months of 2026 — more than the entire country recorded in all of 2025.
- Southern Health, where childhood vaccination rates sit below 56%, is the outbreak's engine, with Boundary Trails Health Centre bearing the heaviest patient load in the province.
- Large gatherings like Manitoba Ag Days and the Royal Manitoba Winter Fair have repeatedly acted as flashpoints, turning community events into vectors of a highly contagious disease.
- Public health teams deployed vaccination booths at major events and expanded eligibility for infants, but officials say the uptick in immunization is not yet large enough to meaningfully slow transmission.
- The province's lead health officer warns that summer will bring no guaranteed relief — unimmunized population clusters mean a single large gathering could trigger another surge at any time.
Manitoba finds itself at the centre of a measles crisis that has outpaced the rest of the country in both speed and scale. Between January and April 2026, the province confirmed 519 cases with 42 more probable — surpassing all 319 cases recorded in 2025 and accounting for more than half of Canada's 907 national cases by mid-April.
The outbreak has moved in waves tied to human gathering. January's Ag Days in Brandon became an early flashpoint, seeding dozens of cases among out-of-town attendees. February was the worst month, with 177 confirmed cases. Officials braced for further surges around spring break and Easter, setting up vaccination booths at the Royal Manitoba Winter Fair — and while the feared spikes did not fully materialize, the situation remains far from resolved.
Dr. Davinder Singh, the medical officer of health leading Manitoba's response, described the trajectory with measured concern. Case counts have stabilized or declined slightly, but he does not expect a sharp drop. "If we have the same numbers in May, June and July that we do in April, I would not be surprised," he said. The danger lies in the province's unimmunized pockets: nearly 90 percent of confirmed cases involved people who had never been vaccinated.
The disparity in vaccination coverage tells the story plainly. In Southern Health — the region encompassing Morden and Winkler — only 55.9 percent of children have received two doses of the measles vaccine by age seven, compared to 80 percent in Winnipeg. Two doses offer 97 percent protection, yet uptake in the hardest-hit areas remains insufficient to slow transmission. Boundary Trails Health Centre, situated between those two towns, is now seeing the province's highest volume of measles patients.
Singh acknowledged the emotional weight of working through a preventable outbreak, noting both the frustration of watching it spread and the small victories when families choose vaccination. He was also candid about the limits of the data: confirmed case numbers almost certainly undercount the true scale of infection. As summer approaches, public health officials are watching closely — knowing that warmer weather may help, but that the next large gathering among unimmunized Manitobans could just as easily undo whatever ground has been gained.
Manitoba is in the grip of a measles outbreak that has already eclipsed an entire year's worth of cases in just four months. Between January and April, the province confirmed 519 cases with another 42 probable, a total that surpasses the 319 cases reported throughout all of 2025. The numbers are stark enough on their own, but they become more alarming when placed in a national context: as of mid-April, Manitoba accounted for 556 of the 907 measles cases reported across Canada, meaning the province alone carries more than half the country's burden of this highly contagious disease.
The outbreak has followed a predictable pattern of acceleration tied to large gatherings. January's Manitoba Ag Days, held in Brandon, became an early flashpoint—dozens of out-of-town attendees contracted measles there, and the province recorded 81 cases that month. February proved to be the worst month so far, with 177 confirmed cases, followed by 159 in March and 102 in April. Public health officials braced for another surge during spring break in late March and early April, as well as around Easter and Passover celebrations. Prairie Mountain Health set up vaccination booths at the Royal Manitoba Winter Fair in Brandon on March 30, specifically worried the event could become another superspreader situation. The interventions appear to have had some effect—the feared spike after spring break and Easter did not materialize as severely as officials had anticipated.
Dr. Davinder Singh, the medical officer of health for Southern Health-Santé who is leading Manitoba's response, acknowledged the situation with cautious language. "If anything, the numbers may not be as bad as they could've been," he said. Yet his broader assessment was sobering. The Interlake-Eastern health region has seen some short-term increases, but overall the provincial case count has either remained steady or declined slightly. Singh emphasized that he is not expecting a sharp reduction anytime soon, even as warmer weather typically drives people outdoors where transmission risk drops. He warned that pockets of unimmunized Manitobans still exist, and if a large gathering occurs among people who have neither been exposed to nor vaccinated against measles, cases could spike again. "It's incredibly difficult, if not impossible, to predict," he said. "If we have the same numbers in May, June and July that we do in April, I would not be surprised."
The root of the crisis lies in vaccination hesitancy and low immunization rates in certain regions. Two doses of the measles vaccine provide 97 percent protection, yet almost 90 percent of confirmed cases in Manitoba involved unvaccinated individuals. Southern Health, which includes the towns of Morden and Winkler, has the lowest vaccination coverage in the province—only 55.9 percent of children have received two doses by age seven, compared to 80 percent in Winnipeg. The slight uptick in vaccination rates that has occurred is attributable mainly to expanded eligibility for infants in the hardest-hit regions, but Singh made clear this increase is not substantial enough to meaningfully slow transmission. "It still isn't a high-enough increase to significantly change the transmission in the outbreak," he said.
Measles poses particular danger to infants and young children, where it can be life-threatening. The outbreak is now straining Manitoba's healthcare system, with the heaviest impact felt at Boundary Trails Health Centre, located between Morden and Winkler in Southern Health. That facility is seeing the largest volume of measles patients in the province. Singh acknowledged the toll this takes on both the system and those working within it. "Anytime you work in this area, there's a range of emotions that come with it," he reflected. He spoke of the frustration of watching preventable disease spread, but also of small victories—families who reconsider their vaccination stance and choose to protect themselves and their children.
The true scale of the outbreak remains unknown. Singh emphasized that the confirmed and probable case numbers do not represent the full picture. The province cannot determine how many measles cases go unreported, meaning the actual number of infections is almost certainly higher than the official count. As the outbreak continues into the warmer months, officials are watching for signs of whether transmission will slow naturally or whether unimmunized populations will continue to fuel spread. The coming weeks will test whether public health messaging and vaccination efforts can bend the curve, or whether Manitoba's measles crisis will persist through the summer.
Citas Notables
If we have the same numbers in May, June and July that we do in April, I would not be surprised.— Dr. Davinder Singh, Southern Health-Santé medical officer of health
It's incredibly difficult, if not impossible, to predict. There's a range of emotions that come with working in this area.— Dr. Davinder Singh
La Conversación del Hearth Otra perspectiva de la historia
Why did February have so many more cases than the months around it?
January had the Ag Days event in Brandon, where dozens of out-of-town visitors contracted measles. That seeded the outbreak across the province. February was when those exposures rippled outward—people who caught it at Ag Days went home and infected others. It was the cascade effect.
So the public health response learned from that, and they tried to prevent it happening again at the spring fair?
Exactly. They set up vaccination booths at the Royal Manitoba Winter Fair in late March specifically because they'd seen what happened in January. They were trying to interrupt the pattern before it repeated.
But the cases didn't spike after spring break the way they expected?
No, and that's what Singh found somewhat surprising. He thought Easter weekend and spring break would trigger another surge like Ag Days did. Instead, the numbers stayed relatively flat. It's not clear why—maybe the vaccination efforts helped, maybe people were more cautious, maybe the virus just ran through certain networks and then had fewer susceptible people to find.
The vaccination rate is still only 55 percent in Southern Health. Why is it so low there?
The article doesn't explain the underlying reasons—whether it's religious belief, distrust of public health, access issues, or something else. But the disparity is stark: Winnipeg is at 80 percent. Southern Health is at 55 percent. That gap is where the outbreak is concentrated.
Singh says he wouldn't be surprised if May, June, and July have the same case numbers as April. That sounds like he's given up.
Not given up, but realistic. He's saying the outbreak has found its level—there are enough unvaccinated people and enough ongoing transmission that he doesn't see a mechanism for rapid decline. Warmer weather might help a little, but it won't solve it. The outbreak will persist until vaccination rates rise or the virus runs out of susceptible people.
What worries him most?
Unimmunized pockets gathering together. If a church, a school, a family reunion brings together people who haven't been exposed and aren't vaccinated, measles will spread explosively among them. He can't predict where that will happen next, which is what makes it so hard to control.