The United States Is About to Lose Its Measles Elimination Status
As of February 5, 2026, the CDC has confirmed 733 measles cases across 20 U.S. states. South Carolina alone has reported 876 cases since October 2025 — the largest outbreak the country has seen in decades. The Pan American Health Organization is scheduled to evaluate whether the United States should lose its measles elimination status sometime this year.
A disease that was declared eliminated in the U.S. in 2000 is now on track to return. Not because of a new variant. Not because the vaccine stopped working. Because people stopped getting vaccinated.
Ground Zero: Spartanburg County
The epicenter is Spartanburg County, South Carolina, where the virus has torn through elementary and middle schools — many of them private Christian academies with largely unvaccinated student bodies. These are not schools that lacked access to vaccines. These are schools where parents chose to refuse them.
Around 93% of cases occurred in unvaccinated people or those with unknown vaccination status.
Measles is one of the most contagious viruses known to science. If one person has it, up to 90% of unvaccinated people nearby will become infected. You do not need to touch anything or even be in the same room at the same time — the virus hangs in the air for up to two hours after an infected person leaves.
How We Got Here
The growth of anti-vaccination sentiment, turbocharged by social media and amplified by political figures who treat public health as a culture war battleground, has eroded vaccination rates below the herd immunity threshold.
The WHO warned of a "sharp increase" in measles cases across the Americas. Experts attribute the trend to vaccination hesitancy and conflicting messaging from federal health officials.
What Elimination Status Means
"Elimination" does not mean zero cases. It means the disease is no longer continuously transmitted within the country for 12 months or more. Losing that status means the U.S. joins a list of countries that backslid on one of the greatest public health achievements of the 20th century.
We had this beat. The vaccine works. The science was never the problem. The problem is a generation of parents who decided Facebook memes were more credible than a century of epidemiology.