Just one month into 2026, the U.S. has already reported 588 confirmed measles cases—about 25% of the total cases recorded in all of 2025—raising concerns that this year could surpass recent annual totals if current trends continue. Several states are experiencing significant outbreaks, with discrepancies between state-reported and federally confirmed case counts, and public health officials are monitoring whether sustained transmission could impact the U.S.’s long-standing measles elimination status.
Resource: 1 month into 2026, measles cases already at 25% of 2025’s total