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[HEALTH] · Canada, United States · 35 sources

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Measles outbreaks surge across North America amid declining vaccination rates FAST-MOVING

Measles outbreaks are surging across North America, prompting urgent public health warnings in Canada and the United States.

In British Columbia, Provincial Health Officer Dr. Bonnie Henry reported 52 cases this year, with 30 individuals requiring hospitalization. The majority of cases have occurred in the Northern Health region. Officials are reminding families to complete immunization schedules ahead of the new school year to prevent further community spread.

In the United States, the situation is similarly critical. Pennsylvania has confirmed 379 cases across 28 counties, leading to updated vaccination guidance for infants and children. Health officials in Pennsylvania also reported two deaths among unvaccinated residents, including an infant. In Maryland, outbreaks have been declared in three counties, with 31 total cases recorded in 2026.

National data indicates that the U.S. has seen over 3,000 confirmed cases as of mid-August 2026, the highest in over three decades. Experts attribute the rise to declining vaccination rates, noting that kindergarten MMR vaccination rates have fallen to 92.4 percent, below the 95 percent threshold required for herd immunity.

Entities

Angela Alsobrooks · Bonnie Henry · British Columbia · Dr. Meena Seshamani · Maryland · Maryland Department of Health · Pennsylvania Department of Health · Robert F. Kennedy Jr.

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Sources

Measles Outbreak in Three Counties [conduitstreet.mdcounties.org]
about 8 hours ago
about 3 hours ago