World Cup 2026 Public Health Preparations

CNBC reported Thursday that public health authorities are ramping up infectious disease surveillance ahead of the FIFA World Cup 2026 health risks, with experts flagging measles and respiratory viruses as their primary concerns.

The tournament, which begins June 11, spans 16 host cities across the United States, Canada, and Mexico. It features 48 national teams, making it the largest World Cup in history.

Measles and Viruses Pose the Greater Threat

Despite an active Ebola outbreak in Congo and Uganda, infectious disease specialists say Ebola is not the most pressing concern. The virus requires direct contact with bodily fluids to spread. That makes mass transmission at crowded venues significantly less likely.

Experts are more alert to highly contagious pathogens. Measles tops the list. So do respiratory illnesses including Covid-19 and influenza. The danger is amplified by the tournament’s format. International fans can travel through multiple cities across three countries within days, potentially seeding outbreaks far from initial exposure points.

Dr. Shruti Gohil, associate medical director for epidemiology at UC Irvine Health, told CNBC the probability of an Ebola transmission event was very low. She stressed the disease does not move easily between people in casual settings.

A Record Measles Year Raises the Stakes

The World Health Organization has designated the Congo-Uganda Ebola outbreak a public health emergency of international concern. The current strain, known as the Bundibugyo virus, carries a high fatality rate and has no approved vaccine or treatment. No U.S. cases had been confirmed as of Wednesday.

Still, the broader disease landscape heading into the tournament is already stressed. The U.S. recorded its highest measles case count in decades last year. Falling vaccination rates and rising vaccine hesitancy have eroded community immunity in several regions. Health officials also flagged dengue and other insect-borne illnesses, alongside heat-related and foodborne illness risks.

Cities Scale Up Surveillance Systems

Host cities are expanding existing monitoring infrastructure and deploying new tools. Wastewater surveillance programs, which proved valuable during the Covid-19 pandemic, are being extended to capture signals from tournament venues and surrounding areas. Hospital coordination networks are also being strengthened.

Dr. Theresa Tran, director of the Houston Health Department, described the preparation effort as immense and ongoing. Houston is among the U.S. host cities. Tran told CNBC that public health functions as an invisible shield, and that maintaining it requires significant behind-the-scenes effort most attendees will never see.

Officials say their systems are ready for the June 11 kickoff and will face their first real-world stress test almost immediately as crowds begin arriving at host venues.

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