As of July 2, 2026, the United States had confirmed 2,170 measles cases across 41 states and 31 outbreaks, more than in any year since elimination was declared in 2000; a PAHO assessment scheduled for November 2026 is widely expected to formally strip the US of the status Canada lost in 2025, following 3 deaths and South Carolina's 847-case outbreak surpassing Texas in 16 weeks

Mexico leads with 10,049 cases, followed by Guatemala and the United States, as the Region of the Americas records 21,431 confirmed cases and 31 deaths through late May 2026