As the 2026 FIFA World Cup approaches, health authorities across the Americas are sounding the alarm over a potential surge in measles cases linked to the tournament. The Pan American Health Organization (PAHO) has urged countries to strengthen vaccination efforts and epidemiological surveillance, citing rising infections in host nations and the risk of international spread during the global event.
Between 2025 and the first quarter of 2026, 43 measles-related deaths were reported in the region, according to PAHO. The organization warned that while vaccination coverage has improved since the pandemic, gaps remain that could allow the highly contagious virus to spread rapidly among large gatherings of people.
PAHO Director Dr. Jarbas Barbosa emphasized the importance of immunization ahead of the World Cup, which will be hosted by the United States, Canada, and Mexico. Speaking at a press conference in Washington, D.C., he stated that the Region of the Americas has maintained its status as a global leader in vaccination, having eliminated polio, rubella, and congenital rubella syndrome, and being the only region to recover and surpass pre-pandemic immunization levels.
Despite these advances, Dr. Barbosa cautioned that measles cases continue to rise, with nearly 14,800 confirmed cases reported across 13 countries in the Americas in 2025—nearly 32 times more than in 2024. This upward trend has persisted into 2026, prompting renewed calls for action.
In mid-April 2026, the three host countries were among the four with the highest case counts in the region: Mexico reported 8,315 cases, the United States recorded 1,664, and Canada documented 733. Although case numbers showed a slight decline in the two weeks prior, PAWO stressed that outbreaks cannot be considered in retreat until You’ll see 12 consecutive weeks of decreasing transmission.
The organization is leveraging the annual Vaccination Week in the Americas, scheduled from April 25 to May 2, 2026, to deliver 90 million vaccine doses, including updating immunizations for over 7.2 million children. This year’s regional launch will seize place in Ottawa, Canada, on April 27.
Dr. Barbosa specifically urged travelers planning to attend the World Cup to obtain vaccinated against measles well in advance, noting that immunity takes time to develop. “If you know you’re going to the World Cup, get the vaccine as soon as possible so you’re better protected when you arrive,” he said during a videoconference from Washington.
He added that strong surveillance combined with vaccination recommendations could help ensure a safer tournament where countries strengthen public health rather than risk exporting infections.
PAHO also highlighted the long-term impact of immunization, noting that childhood vaccination in the Americas between 1974 and 2024 prevented approximately 15 million deaths in children under five, over 1.1 billion cases of disability, and nearly 28.4 billion cases of illness.
Nevertheless, the director acknowledged that significant gaps in immunity persist and must be closed to prevent further outbreaks, especially in the context of mass international events like the World Cup.
As of April 2026, no official date has been announced for the next PAHO update on measles surveillance in the region. Readers are encouraged to consult PAHO’s official website and national health ministry bulletins for the latest guidance on vaccination and outbreak monitoring.
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