Canada has officially lost its status as a measles-free country after experiencing a year-long outbreak and sustained transmission of the virus. This loss of elimination status marks a significant setback for the nation, which had maintained its measles-free designation for nearly three decades. Health officials attribute this resurgence to decreased vaccination rates and increasing vaccine hesitancy, prompting concerns that the United States may be next to lose its measles elimination status as similar trends emerge. The situation has raised alarms among public health experts, who are now calling for regional action across the Americas to address this troubling decline in vaccination coverage.