Public health officials are raising the alarm that a major international soccer tournament could bring a fresh measles threat to Vancouver and other parts of Canada. With fans, athletes, staff, and media traveling in from around the world, experts say even one imported case can matter when large crowds gather in close quarters.
The Public Health Agency of Canada has already identified measles as one of the diseases most likely to arrive during the tournament. That concern is not based on guesswork. Measles is still circulating in many countries, it spreads through the air with remarkable ease, and major sporting events create exactly the kind of dense, fast-moving environment where infections can spread before anyone realizes what is happening.
Ontario has released a detailed infectious disease risk assessment for the event, and it points to international travel, crowded venues, and weaker vaccination coverage as key reasons an outbreak could occur. British Columbia, by contrast, has not yet made its own assessment public.
Why Health Leaders Want Faster Public Guidance
Dr. Brian Conway, the medical director of the Vancouver Infectious Diseases Centre, says that silence from provincial health officials is a problem. In his view, people cannot protect themselves if they are not being told clearly what the risk looks like or what they should do before the crowds arrive.
He believes residents should be encouraged to confirm whether they have been fully vaccinated against measles and, if necessary, update their records now rather than later. He also says visitors need to know that Canada is already dealing with active measles spread, which makes preparation more important than usual.
For Conway, the message is practical rather than dramatic: when a city prepares to host a global event, public health communication needs to be direct, early, and easy to understand.
The Current Measles Picture Across Canada
Canada has reported more than 900 measles cases across seven jurisdictions this year, and Alberta and Manitoba have seen the largest share. Those numbers matter because they show that measles is not a theoretical problem in the country right now; it is already circulating in multiple regions.
The current outbreak follows a far larger wave last year, when more than 5,000 people were infected. Health officials believe that outbreak began with a case in New Brunswick in the fall of 2024 after the infected person was exposed outside Canada. That history has made many experts more cautious this time around.
British Columbia has also been dealing with substantial numbers. Provincial data shows 470 measles cases were reported across 2025 and 2026, and roughly 80 percent of them were concentrated in northeastern B.C., where vaccination rates are among the lowest in the province.
What Past Sporting Events Have Taught Vancouver
History gives public health experts another reason to pay close attention. After the Vancouver 2010 Winter Olympic Games, British Columbia recorded a measles outbreak with 82 confirmed cases. The setting was different, but the lesson was similar: major international events can create temporary openings for diseases that travel easily from one person to another.
Conway says the situation is more concerning now because immunization rates have fallen in parts of B.C. He also points out that some of the countries sending athletes, fans, and support teams may have even lower vaccination coverage, which raises the odds that an infected traveler could arrive during the tournament.
That combination of factors does not guarantee an outbreak, but it does increase the importance of readiness. The more people are protected in advance, the less room the virus has to spread.
How Local Authorities Say They Are Preparing
Vancouver Coastal Health says it has been planning for the FIFA World Cup for years. The health authority says it completed a public health risk assessment with the B.C. Centre for Disease Control, though the findings have not been shared publicly.
Dr. Mark Lysyshyn, the deputy chief medical health officer with Vancouver Coastal Health, said the assessment placed measles risk during the tournament in the medium range. That does not mean there is no concern, only that the danger is considered manageable with the right precautions.
He noted that the health authority has already handled dozens of imported measles cases during the current outbreak. So far, however, those cases have not led to sustained spread in the region. In his view, that reflects the strength of local immunization coverage, which has helped block chains of transmission before they can expand.
The City of Vancouver says it has operational and emergency management plans ready for the tournament as well. Officials say they are prepared to respond if public health or safety problems arise.
Who Faces the Greatest Risk
Dr. Monika Naus, a professor at the University of British Columbia’s School of Population and Public Health, says large gatherings always carry some infectious disease risk. Still, she argues that the general public’s overall risk remains fairly limited because most adults are already immune through vaccination or prior infection.
The greater concern, she says, is what happens if measles reaches places where vaccination coverage is low. In British Columbia, that risk is concentrated in certain geographically connected communities, which can make transmission easier once the virus gets in.
That is why experts keep returning to the same point: measles does not need a citywide weakness to spread. It only needs a pocket of vulnerability and a single introduction.
Why Vaccination Checks Matter Now
Canada lost its measles elimination status last year after the Pan American Health Organization was notified that the country no longer met the standard. A country loses that status when transmission continues for an extended period instead of being limited to isolated imported cases. Canada can regain it if transmission is interrupted for a full year.
For residents and visitors, the practical takeaway is simple. Before the tournament begins, check vaccination records, confirm whether two doses were received, and do not assume childhood protection is still complete if records are unclear.
- Review your measles vaccination history before traveling or attending crowded matches.
- Contact a health provider if your records are incomplete or you are unsure about your status.
- Take extra care if you work with children, older adults, or people with weakened immune systems.
Measles is highly contagious, but it is also preventable. That makes preparation especially important at a time when Vancouver is preparing for an event that will draw the world together. The challenge is to celebrate the tournament while keeping a preventable disease from turning that excitement into a public health problem.
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