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No One Should Get Measles in America | Pittsburgh Post-Gazette
UNITED STATES AND CANADA, JUL 16 – Vaccination rates have dropped below herd immunity thresholds, leading to over 1,300 U.S. cases and more than 1,300 in Alberta, Canada, health officials said.
The United States has recorded over 1,300 confirmed measles cases and three deaths by mid-2025, marking its worst year since 1992.
This surge follows a drop in vaccination rates below the 95% herd immunity threshold and outbreaks in Texas Mennonite and New York Orthodox Jewish communities.
Measles is a highly contagious virus causing serious complications like pneumonia and brain inflammation, but vaccination prevents infection and immune depletion in children.
Research indicates that unvaccinated children can experience a substantial reduction—ranging from about one-tenth to nearly three-quarters—in their antibodies against various diseases following measles infection, whereas vaccinated children maintain their immune defenses.
The ongoing outbreak threatens public health progress, emphasizing that vaccination protects individuals and communities, especially those unable to receive vaccines.