Freshness note: This analysis was last updated 14 days ago. Fast-moving policy claims can change quickly, so check for newer official updates before relying on this verdict.
“There have been over 1,000 cases of measles in the U.S. in 2026”
Summary
The United States experienced over 1,000 measles cases in 2026, marking a significant increase from recent years. The outbreak included a large cluster in South Carolina, specifically in Spartanburg County, which was reported as the largest measles outbreak since 2000. Low vaccination rates in certain communities, including one school in Spartanburg County with a 21 percent vaccination rate, contributed to the spread.
Primary Sources
Reported over 1,000 measles cases in the United States in 2026
Documented South Carolina measles outbreak as the largest since 2000
Reported that one school in Spartanburg County has a vaccination rate of 21 percent
CDC official source for measles surveillance data and outbreak tracking in the United States
Evidence Supporting the Claim
- NBC News reported over 1,000 measles cases in the U.S. in 2026
- The New York Times documented a major measles outbreak in South Carolina, specifically in Spartanburg County
- The South Carolina outbreak was characterized as the largest since 2000 according to New York Times reporting
- Low vaccination rates were documented in affected areas, with one Spartanburg County school having only a 21 percent vaccination rate
Evidence Against / Context
- The 2026 measles count represents preliminary or mid-year data, as the full year has not concluded as of the claim date
Timeline
Measles cases began accumulating in the United States during 2026
South Carolina outbreak in Spartanburg County emerged as a significant cluster
Total U.S. measles cases for 2026 exceeded 1,000 according to news reports
What This Means
Structured interpretation — not opinion
Key takeaway 1
The 2026 measles case count represents a substantial increase compared to recent years, when annual U.S. case counts typically ranged from dozens to a few hundred cases
Key takeaway 2
Low vaccination rates in specific communities created conditions that allowed measles to spread more readily, as measles requires approximately 95 percent vaccine coverage to maintain herd immunity
Key takeaway 3
The South Carolina outbreak represents a significant public health event, being the largest measles outbreak in over two decades
Key takeaway 4
Measles is highly contagious and preventable through vaccination, making outbreaks of this scale indicative of gaps in immunization coverage
Related Claims in public_health
“A measles outbreak in southern Utah has been ongoing since last summer and is showing signs of wider spread”
A measles outbreak in southern Utah began in summer 2024 and continued into 2025, with health officials confirming multiple cases. The outbreak has shown signs of geographic expansion, with exposures documented in Colorado and additional cases reported beyond the initial outbreak area.
“14 measles cases were reported at an El Paso ICE tent camp”
No credible evidence confirms 14 measles cases at an El Paso ICE tent camp in 2026. No official reports from CDC, Texas Department of State Health Services, or ICE document such an outbreak. The claim lacks verification from public health or government sources that would typically report measles outbreaks due to mandatory reporting requirements.
“Measles cases in South Carolina have risen to 979 cases as of February 24, 2026”
South Carolina is experiencing a significant measles outbreak with 979 confirmed cases reported as of February 24, 2026, according to state health officials. This represents one of the largest measles outbreaks in recent U.S. history. The outbreak has been linked to declining vaccination rates in certain communities within the state.