International health authorities are set to convene in April to determine if the U.S. has forfeited its measles-free designation, a year after an outbreak first emerged in West Texas.
Experts are concerned that the vaccine-preventable virus has re-established a foothold, potentially leading the U.S. to follow Canada in losing this significant public health achievement.
The re-evaluation is largely symbolic, contingent on whether a single measles chain has spread uninterrupted within the country for at least 12 months. Public health scientists are currently investigating potential links between the now-concluded Texas outbreak and active cases in Utah, Arizona and South Carolina.
However, medical professionals and researchers assert that the U.S. – and North America more broadly – confronts a significant measles challenge, irrespective of the upcoming decision.
“It is really a question of semantics,” said Dr. Jonathan Temte, a Wisconsin family physician who helped certify the U.S. was measles-free in 2000. “The bottom line is the conditions are sufficient to allow this many cases to occur. And that gets back to de-emphasizing a safe and effective vaccine.”
“The most important thing that we can do is to make sure the people who aren’t vaccinated get vaccinated,” said Jennifer Nuzzo, director of Brown University’s Pandemic Center. “We have not issued a clear enough message about that.”
Source: The Independent, 20 January 2026
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