The latest surge in Manitoba’s measles outbreak has subsided, but health experts caution that the province is still far from achieving herd immunity against the virus. Dr. Davinder Singh, from Manitoba’s immunization program, emphasized the likelihood of another increase in cases without improved vaccine uptake. In July, only two confirmed cases were reported, marking the lowest count since March 2025.
For three and a half weeks in July, Manitoba Public Health did not report any new infections, representing the longest period without recorded cases since the winter of 2024-25. Despite ongoing transmission, the rate of infections has significantly decreased compared to the peak of 177 confirmed cases in February.
The decline in reported cases continued through the spring, with numbers dropping to 49 in May and eight in June. Dr. Singh anticipates a potential increase in cases during the fall but expects it to be substantially lower than previous levels. Brandon Mayor Jeff Fawcett noted the significant decrease in measles cases, contrasting with the concerns during past events like the Royal Manitoba Winter Fair and Manitoba Ag Days.
While many initially vulnerable individuals have contracted measles and developed resistance, contributing to the decline in cases, Dr. Philippe Lagacé-Wiens emphasized that measles remains a seasonal virus. The spread of measles is expected to rise during colder months when people spend more time indoors, facilitating virus transmission.
To achieve herd immunity, at least 95% of Manitobans need to be immune to measles, a target that remains distant. Low vaccination rates have led to pockets of susceptible individuals, resulting in the outbreak earlier this year. Efforts to increase vaccination rates and build trust in immunization continue in Manitoba to prevent future outbreaks.
Despite the decrease in measles cases in Manitoba, health officials remain vigilant, as outbreaks in neighboring regions like the United States pose a potential risk. The province’s focus on expanding vaccine eligibility and promoting immunization education aims to mitigate the spread of measles and protect the community from future outbreaks.