Eastern Canadian provinces fall short of measles vaccination targets needed for herd immunity.

Measles vaccination rates among children in Nova Scotia, Prince Edward Island, and New Brunswick are below the 95% threshold needed to prevent disease spread, with 23%, 10%, and 10% of children unvaccinated, respectively. Newfoundland and Labrador did not provide vaccination data. Experts emphasize the need to reach 95% vaccination to achieve herd immunity.