Ebola and Extreme Heat: The Twin Threats Facing the 2026 FIFA World Cup

As the 2026 FIFA World Cup approaches, organizers are confronting not one but two formidable threats that could disrupt the month-long spectacle across the United States, Mexico, and Canada. An Ebola outbreak in the Democratic Republic of Congo has already forced that nation’s team to shift its training camp to Belgium, while climate scientists warn that a quarter of all matches could be played in potentially hazardous heat, revisiting ghosts of past tournaments from 1994 to Qatar 2022.

The Ebola Outbreak: A Public Health Emergency

Amid an escalating Ebola outbreak in the Democratic Republic of Congo, the national football squad has taken the extraordinary step of relocating its World Cup preparations from Kinshasa to Belgium, according to Forbes

The World Health Organization

has classified the situation as a “public health emergency of international concern,” a designation that, while short of a full pandemic, has nevertheless sent ripples through the global football community. As Forbes contributor Simon Chadwick notes, the shadow of COVID-19 still looms large; the 2020 UEFA Champions League match between Liverpool and Atlético Madrid was later identified as a superspreader event, and Qatar 2022 organizers implemented stringent measures to prevent similar outbreaks. The potential for mass gatherings at World Cup matches to accelerate disease transmission is a scenario FIFA desperately wants to avoid.

Lessons from Past Sporting Events

The memory of Atlético Madrid fans travelling to Anfield in March 2020, inadvertently fueling the early spread of COVID-19 in Liverpool, serves as a stark warning. Similarly, during the Qatar World Cup, officials required vaccination proof and testing, yet the event coincided with a global surge in cases. Now, with the Ebola virus circulating in central Africa, the risk of cross-border infections—especially through international travel of players, staff, and fans—has forced DR Congo into a defensive posture. Moving their camp to Belgium, a nation with a large Congolese diaspora and robust health infrastructure, is a pragmatic if costly decision that underscores the uncertainty surrounding the tournament’s health protocols.

Extreme Heat: A Quarter of Matches at Risk

Climate change is adding another layer of complexity. An analysis by World Weather Attribution (WWA), a network of climate scientists, has found that 26 of 104 scheduled World Cup matches could be played in conditions where the Wet Bulb Globe Temperature (WBGT) reaches at least 26°C—the threshold at which the international players’ union FIFPRO recommends immediate cooling breaks. The study, cited in multiple reports, warns that players and fans face a “much higher risk of gruelling heat and humidity” than during the 1994 World Cup held in similar venues across the United States. That tournament also saw stifling conditions, but global warming has since significantly raised the baseline risk.

Climate Scientists’ Alarming Projections

The WWA data breaks down the heat threat further: 17 of the 26 high-risk matches are slated for stadiums equipped with cooling systems, but nine matches will rely solely on natural ventilation and shade. Even more concerning, five matches are expected to reach 28°C WBGT or above, a level that FIFPRO says should trigger match delays or even postponement. Host cities like Houston, Miami, and Monterrey, known for their searing June and July temperatures, are under particular scrutiny. The 1994 tournament saw players wilting in midday heat, but the 2026 edition—stretching from June 11 to July 19—could set new benchmarks for on-field thermal stress.

FIFA’s Mitigation Measures

FIFA has already mandated cooling breaks during each half of World Cup matches, a rule introduced after the 2014 Brazil tournament. Additionally, organizers have promoted the use of air-conditioned stadiums, with venues such as Dallas’s AT&T Stadium and Mexico City’s Estadio Azteca boasting advanced climate control. However, critics argue that outdoor fan zones and training pitches lack such protections, leaving supporters and players exposed during non-match hours. FIFPRO has repeatedly called for scientifically driven scheduling adjustments, urging FIFA to move kickoff times to cooler evening slots and to empower match officials with clearer heat-safety authority.

Team Preparations and Player Safety

The dual threats are reshaping how national teams prepare. DR Congo’s decision to base in Belgium is a direct response to the Ebola risk, allowing players to train without exposure to an outbreak zone. While no specific player names have been disclosed as affected, the squad’s relocation—reported by Forbes and BBC Sport—highlights the logistical nightmares facing African qualifiers. Other nations with players based in central Africa may also face travel restrictions or quarantine dilemmas. On the heat front, European and South American teams accustomed to milder climates are scrambling to arrange pre-tournament acclimatization camps in similar conditions, with some football associations exploring cooling vests and hyperhydration protocols.

The Human Factor for Players and Fans

For supporters, the risks extend beyond the stadium turnstiles. The iconic image from 1994 of a fan using a spray bottle and fan in Chicago’s Soldier Field, captured by Ralf-Finn Hestoft, resonates powerfully in 2026. Heat exhaustion, dehydration, and sunstroke remain underappreciated public health threats at mass outdoor events. FIFA’s ticketing and fan experience teams are being urged to distribute water freely and set up cooling stations, but implementation varies by host city. Medical professionals warn that children, elderly fans, and those with pre-existing conditions are particularly vulnerable during heatwaves likely to coincide with the tournament.

Looking Ahead: A Tournament on Tenterhooks

As the opening match on June 11 nears, FIFA finds itself navigating a precarious balancing act. The Ebola outbreak, while currently contained, has the potential to trigger travel bans or mass quarantines that could sideline entire squads—DR Congo’s relocation to Belgium may be just the first domino. If the virus spreads, the tournament could see last-minute player replacements from standby lists, much like COVID-19 forced teams to call up reserves during recent competitions. On the climate side, WWA’s data leaves little room for complacency: with 28°C WBGT matches a near-certainty, the sport must confront hard questions about starting times and player welfare. Ultimately, the 2026 World Cup may be remembered not just for its goals and glory, but for how it handled a perfect storm of biological and environmental challenges.