Public Health Collaborates with Summer Camps to Prevent Measles Spread

As summer approaches, the Region of Waterloo Public Health is intensifying its efforts to prevent the spread of measles during the season's camp activities. Following a spike in measles cases reported between June 10 and June 17, 2025—specifically, 21 confirmed cases—public health officials are proactively working with local summer camps to implement safety measures and vaccination protocols aimed at safeguarding children while they enjoy their vacations.

David Aoki, Director of Infectious Disease at Region of Waterloo Public Health, stated, "Because measles is an airborne virus, enclosed environments tend to be worse for the spread of disease. The virus doesn't dissipate like it does in an open-air environment, such as at outdoor camps." Aoki emphasized that the transition from confined classroom settings to outdoor camp environments could potentially reduce the transmission rates of the virus.

The public health department has established communication channels with summer camp organizers, sharing information on how to effectively defend against measles outbreaks. Aoki noted, "They want kids to have a good time but they also want to ensure that the camps are safe and that their campers are protected. Everyone that we’ve worked with has been a great partner."

Despite high vaccination rates in Waterloo Region, Aoki urges parents to verify their children's vaccination status. He explains that early symptoms of measles include high fever and a rash that typically begins on the face and spreads throughout the body. As of June 17, 2025, a total of 110 measles cases have been reported in the region since October 2024, highlighting the ongoing risk of outbreaks.

In response to the rising case numbers, public health officials are also expanding the eligibility for the measles vaccine in Waterloo Region, particularly for at-risk populations. This initiative aims to enhance community immunity and prevent further transmission of the virus. The public is encouraged to consult healthcare providers regarding vaccination and to access resources available on the Region’s Measles Resource Page.

As the summer unfolds, the collaboration between public health authorities and local summer camps underscores the importance of community engagement in managing public health risks. Moving forward, continued monitoring and adaptation of strategies will be necessary to ensure the health and safety of children enjoying summer activities in Waterloo Region.