Measles Update: April 10, 2026

Today, the Centers for Disease Control and Prevention (CDC) reported there were 1,741* cases of measles in the US as of April 9, 2026. Week-over week, that is an additional 43 cases and a 2.57% increase. Last week, the federal agency reported there was 1,671* confirmed cases.¹ This marks a significant decrease in the number of cases from the previous week that saw a 6.1% increase in cases the week ending, April 2.

CDC said there were 1,704 measles cases were reported by 33 jurisdictions: Alaska, Arizona, California, Colorado, Florida, Georgia, Idaho, Illinois, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Mexico, New York City, New York State, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Texas, Utah, Vermont, Virginia, Washington, and Wisconsin. A total of 10 measles cases were reported among international visitors to the US.¹This number has stayed static from week-to-week.

The federal agency reports “there have been 17 new outbreaks** reported in 2026, and 94% of confirmed cases (1,609 of 1,704) are outbreak-associated (377 from outbreaks in 2026 and 1,232 from outbreaks that started in 2025).” ¹

How the Individual States are Faring

In 2026, South Carolina has seen the greatest number of cases with 667. This is followed by Utah with 408 cases, Texas (176), and Florida (129). There are still several states without a single case including Alabama, Arkansas, Connecticut, Delaware, Hawaii, Indiana, Iowa, Kansas, Louisiana, Maryland, Mississippi, Nevada, New Hampshire, New Jersey, Rhode Island, Tennessee, West Virginia, and Wyoming. All these numbers are as of April 9.

The last few weeks the number of cases has dropped to single digits with this past week’s increase showing the smallest percentage of measles cases in months. Typically cases begin to decrease in the spring. What remains to be seen is if measles has become endemic in the US and will continue to circulate throughout the course of the year.

*It is important to note that the CDC says on its website that the federal agency is aware of probable measles cases being reported by jurisdictions. However, the data on this page only include confirmed cases that jurisdictions notified the CDC about. Therefore, there could be higher numbers in the US overall.

**CDC reports the cumulative number of measles outbreaks (defined as 3 or more related cases) that have occurred this year in the US; states have the most up-to-date information about cases and outbreaks in their jurisdictions.

Reference

1.Measles Cases and Outbreaks. CDC. April 10, 2026. Accessed April 10, 2026.
https://www.cdc.gov/measles/data-research/index.html