How many measles cases in the U.S. will be reported by the CDC between 1 January 2025 and 30 September 2025?
Started
May 23, 2025 08:00PM UTC
Closing Oct 01, 2025 04:00AM UTC
Closing Oct 01, 2025 04:00AM UTC
Topics
Seasons
According to the CDC, as of 15 May 2025 there were a total of 1024 confirmed measles cases across 30 states. As of May 2025, there have been 14 outbreaks (three or more related cases) in 2025, compared to 16 outbreaks in 2024 (ABC News).
Resolution Criteria:
This question will resolve using the CDC’s “Measles Cases and Outbreaks” page. Navigate to the page, and find the shaded box titled “U.S. Cases in 2025.” The question will resolve according to the total number of cases reported for 2025 as of 5:00 pm ET 1 October 2025.
Question clarification
Issued on 07/01/25 03:35pm
The CDC now updates the “Measles Cases and Outbreaks” page on Wednesdays, with data reported to the CDC as of noon on Tuesdays. As September 30th is a Tuesday and October 1st is a Wednesday, the question will be resolved using data released on 1 October 2025. The resolution criteria has been updated to this effect.
The CDC now updates the “Measles Cases and Outbreaks” page on Wednesdays, with data reported to the CDC as of noon on Tuesdays. As September 30th is a Tuesday and October 1st is a Wednesday, the question will be resolved using data released on 1 October 2025. The resolution criteria has been updated to this effect.