The 2026 FIFA World Cup in Vancouver is a cause for celebration, but it also raises concerns about the risk of measles outbreaks. With hundreds of thousands of visitors expected, the potential for disease spread is high, especially given the recent measles outbreak in British Columbia. Public health experts emphasize the importance of preparation and vaccination to prevent sustained transmission of measles. The measles virus is highly contagious, with a basic reproduction number (R₀) ranging from 12 to 18, making it a significant threat at mass gatherings. The 2010 Winter Olympics in Vancouver serves as a cautionary tale, as imported measles cases spread after the event, highlighting the need for robust public health surveillance systems and vaccination coverage. The current situation in British Columbia is concerning, with falling vaccination rates among school-age children and over 400 measles cases reported in the past year. The level of preparedness for the World Cup remains unclear, as the City of Vancouver Host Committee's 'Know Before You Go' campaign lacks guidance on measles and other infectious diseases. Effective preparation should involve embedding public health into event planning, transparent risk communication, and community engagement. Ongoing public communication and coordination are crucial to respond to emerging threats. The experience of the 2010 Olympics reminds us that pathogens can spread even in well-planned systems, and the critical monitoring of cases post-event is essential to prevent further transmission. As the World Cup approaches, it is imperative that Vancouver takes proactive measures to protect public health and ensure a safe and enjoyable event for all.
