Measles Cases Surge Across teh US, Reaching Levels Not Seen Since 1992
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The United States is grappling with a significant resurgence of measles, with health officials reporting at least 124 new cases in South Carolina since last Friday, bringing the total outbreak count to 434. This escalating situation, coupled with the first confirmed cases in Georgia, Oregon, and Virginia in 2026, signals a worrying trend as the nation experiences the highest number of measles cases in over three decades.
National Outbreak Intensifies
The current outbreak began in South Carolina in early October, with Spartanburg County, bordering North Carolina, being the epicenter. Nationally, the situation is rapidly deteriorating.Last year alone, 2,144 cases were reported across 44 states. Data from the Centers for Disease Control and Prevention (CDC) reveal a dramatic increase in outbreaks: nearly 50 occurred last year, compared to just 16 in 2024 and a mere four in 2023.Nearly 90% of these cases are linked to ongoing outbreaks.
Tragic Toll and Declining Vaccination Rates
The resurgence of measles has already proven fatal. At least three deaths were recorded in 2025, including two among unvaccinated school-age children in Texas and one among an unvaccinated adult in New Mexico – marking the first measles-related death in the United States in a decade.
This tragic outcome underscores the critical importance of vaccination.the CDC recommends two doses of the MMR vaccine, with the first administered between 12 and 15 months of age and the second between 4 and 6 years. The vaccine is highly effective, providing 93% protection with one dose and 97% with two.
Though, vaccination rates are declining. During the 2024-2025 academic year, 92.5% of kindergarten children received the MMR vaccine, a decrease from 92.7% the previous year and substantially lower than the 95.2% rate observed before the COVID-19 pandemic in the 2019-2020 school year. In 2025,a staggering 93% of measles cases occurred among individuals who were unvaccinated or whose vaccination status was unknown,with an additional 3% among those who received only one dose and 4% among those fully vaccinated.
Public Health Response and Ongoing Concerns
More than 400 people are currently under quarantine as health officials work to contain the spread. The situation demands immediate attention and a renewed focus on public health initiatives to promote vaccination and prevent further outbreaks. The escalating numbers serve as a stark reminder of the vulnerability of communities with declining immunization rates and the potential for a widespread resurgence of this highly contagious disease.
ABC News’ Uri Ben-Goud contributed to this report.
Expanded News Report:
Why is this happening? The surge in measles cases is primarily due to declining vaccination rates across the United States. While the MMR vaccine is highly effective, a growing number of individuals are choosing not to vaccinate themselves or their children, leading to decreased herd immunity and increased susceptibility to the virus. This decline is linked to misinformation about vaccine safety and accessibility issues.
Who is affected? The outbreak is impacting communities nationwide, with South Carolina currently at the epicenter. The most vulnerable populations include unvaccinated children, individuals with compromised immune systems, and those who cannot be vaccinated for medical reasons. The three deaths recorded in 2025 underscore the severity of the risk, particularly for school-age children and adults.
What is the current situation?
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