Measles, one of the most contagious diseases, is making a significant comeback in the United States.
With cases rapidly increasing, experts are closely monitoring the situation, especially with the country already seeing the second-most active year for measles since 2000.
As of 2025, there have been 1,000 confirmed measles cases in the U.S. This makes the current year the second-highest for measles cases since the U.S. declared the disease officially eliminated in 2000. Despite this declaration, measles outbreaks have continued sporadically.
Texas is seeing the highest number of cases, responsible for about two-thirds of all reported infections in 2025. The state’s ongoing outbreak has raised concerns about the effectiveness of current vaccination efforts.
The United States officially declared the elimination of measles in 2000, meaning that the disease had not spread continuously for at least 12 months.
However, recent case counts are still low compared to past years, such as 27,000 cases in 1990 and 450,000 cases in 1964. The introduction of the measles vaccine in 1963 played a critical role in reducing the disease’s impact.
While the U.S. has made significant progress in controlling measles, recent increases in cases highlight the importance of vaccination. Health authorities continue to track outbreaks and encourage vaccination to prevent further spread of the disease.
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