Measles cases In U.S. hit 1,288
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Measles cases in the United States have reached their highest number in more than 30 years, according to new federal data published Wednesday.
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CNET on MSNMeasles Cases Hit the Highest Number in 33 Years. Do You Need a Measles Vaccine Booster?According to the US Centers for Disease Control and Prevention, two doses of the MMR (measles, mumps and rubella) vaccine are 97% effective at preventing measles, while one dose is 93% effective. It is uncommon for someone who is fully vaccinated to develop measles, although the first breakthrough case of 2025 was recently detected in Colorado.
Three deaths reported nationally as Ohio's outbreak ends with 35 cases, while Texas accounts for 753 infections in the largest national surge since measles was declared eliminated in 2000.
The US Centers for Disease Control and Prevention on Wednesday tallied the highest number of US measles cases since the disease was declared eliminated a quarter-century ago, just as a key Senate committee split the vote to advance President Donald Trump’s nominee to lead the public health agency.
The U.S. has seen more measles cases in 2025 than in any year since the virus was declared "eliminated" in 2000.
Cases have reached the highest yearly total since 1992 in less than seven months, and vaccination rates for kindergartners have fallen nationally.
Halfway through 2025, the US’s total annual measles cases have reached a level not seen in more than three decades.