As millions of soccer fans gather across North America for the World Cup, health officials are closely monitoring a range of infectious diseases, with measles emerging as a top concern. The Pan American Health Organization (PAHO) has issued a warning, noting that a single measles patient can infect up to 18 unprotected individuals.
The U.S. has already seen over 2,000 measles cases this year, nearly matching last year's total, and outbreaks are also spreading in Canada and Mexico, where cases have exceeded 11,000.
Health agencies, already strained by budget cuts and staffing reductions at the Centers for Disease Control and Prevention (CDC), are deploying a multi-pronged surveillance strategy. This includes analyzing wastewater, monitoring hospital visits, and tracking social media for early signs of outbreaks.
The CDC's planned World Cup disease surveillance dashboard was still in final development days before the games began, according to the Department of Health and Human Services.
Georgetown University, in partnership with MedStar Health, has established a Health Security Operations Center to analyze data from across the country. The center issues daily situation reports to hundreds of local and federal health groups, emergency management officials, and hospitals.
"We're trying to be the insurance policy," said a MedStar emergency medicine specialist, emphasizing the goal of early detection without causing alarm.
While Ebola is a concern for some, experts like Craig Spencer, an Ebola survivor, downplay its risk during the World Cup. He noted that measles and other infectious threats pose a greater danger due to their ease of transmission.
Ebola spreads only through contact with bodily fluids from symptomatic individuals, unlike airborne viruses such as measles or COVID-19.
Wastewater testing has already detected rotavirus, hepatitis A, and norovirus in some U.S. regions, prompting officials to expand screening.
In Dallas, authorities are testing wastewater at the international airport and enhancing mosquito surveillance for viruses like dengue and chikungunya. Philadelphia's health commissioner, Palak Raval-Nelson, highlighted months of preparation, including mock emergency drills and inter-agency communication, stating, "We have the frameworks in place to carry out what we need to."