Measles Confirmed, Exposure Alerts Issued Across Multiple US, Canadian Regions

Measles outbreaks and exposures have been reported across multiple U.S. and Canadian regions, prompting public health alerts and calls for vaccination and vigilance. In British Columbia, Northern Health confirmed measles cases in Wonowon, urging potential contacts to monitor symptoms and consider MMR vaccination. The Windsor-Essex County Health Unit in Ontario is emphasizing vaccination and preparedness for the summer camp season to prevent measles spread in group settings. Monroe County health officials issued an alert after an unvaccinated child tested positive at a local hotel, highlighting that fully vaccinated individuals have a significantly reduced risk. In the Washington, D.C., metropolitan area, authorities are investigating cases linked to an international traveler who passed through Dulles International Airport and subsequent locations, with detailed exposure sites and recommendations for non-immune individuals to contact health providers. Similarly, Northern Virginia health officials are tracing contacts from the same traveler and advising post-exposure precautions. These incidents collectively underscore the high contagion risk of measles and the critical role of vaccination and timely public health responses to contain outbreaks.