US, Canada and Mexico face measles outbreaks months before World Cup 2026

With fewer than four months to go before the 2026 FIFA World Cup kicks off, the United States, Canada and Mexico —the tournament’s three host countries— are reporting significant measles resurgences, a highly contagious disease that had been pushed back across the region through routine immunization. Health authorities and international bodies are urging stronger vaccination and surveillance as public trust in vaccine guidance frays.