Amid a surge in measles cases in Manitoba, health experts are advising unvaccinated individuals to steer clear of large public gatherings until the outbreak subsides. The caution follows a public health alert issued by the Manitoba government, warning attendees of the AG Days indoor farm show in Brandon about potential measles exposure.
Approximately 35,000 people participated in the annual event at the Keystone Centre in southwestern Manitoba between January 20 and 22. Health officials also noted that those who visited hotels, restaurants, and shops in the city during the three-day event might have been exposed to the virus.
Dr. Philippe Lagacé-Wiens, a medical microbiologist and physician at St. Boniface Hospital, expressed deep concern over the situation, highlighting the high transmissibility of measles in enclosed spaces. He emphasized that individuals with measles can unknowingly spread the virus, leading to a chain of transmission that poses a significant risk, especially in large gatherings.
Manitoba witnessed its highest monthly count of confirmed measles cases in January since the outbreak began in February 2025. Lagacé-Wiens underscored the heightened risk of exposure for unvaccinated individuals in larger groups, emphasizing the importance of vaccination to prevent infection.
Unlike COVID-19, measles can linger in the environment for hours, making physical distancing and masks less effective in preventing transmission. Lagacé-Wiens stressed the need for unvaccinated individuals or those experiencing measles-like symptoms to avoid attending festivals and gatherings to minimize the spread of the disease.
Virologist Angela Rasmussen pointed out that achieving herd immunity is no longer feasible to protect the unvaccinated, emphasizing the importance of reducing exposure to prevent measles infections. She recommended that vulnerable groups, such as newborns and unvaccinated children, avoid large public events to lower their risk of contracting the virus.
Despite the escalating measles outbreak, Manitoba has not yet reached a point where restrictions or event cancellations are mandated. Lagacé-Wiens indicated that while immunization remains a key strategy to control the outbreak, stricter measures could be considered if the situation worsens.
Efforts to combat misinformation about vaccinations are crucial in boosting immunization rates and curbing the spread of measles. Rasmussen highlighted the need for targeted communication strategies to reach individuals who are hesitant about vaccines and counter misinformation effectively.
Brandon Mayor Jeff Fawcett stated that the city is closely monitoring the potential measles exposure at AG Days and is following provincial health guidance. He credited high immunization rates in Brandon to the community’s awareness and past experiences with measles outbreaks, emphasizing the importance of vaccination and symptom monitoring.
As the situation evolves, public health officials will continue to provide guidance, with potential restrictions on gatherings only being implemented upon their recommendation. Fawcett reassured residents that the city remains vigilant in addressing health concerns while maintaining normalcy in daily life.