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
Closed Oct 01, 2025 04:00AM UTC
Closed 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.
Resolution Notes
The CDC reported 1544 cases in the U.S from 1 January 2025 through 30 September 2025.
| Possible Answer | Correct? | Final Crowd Forecast |
|---|---|---|
| Less than or equal to 1349 | 0% | |
| Between 1350 and 1499, inclusive | 3% | |
| Between 1500 and 1649, inclusive | 96% | |
| Between 1650 and 1799, inclusive | 1% | |
| More than or equal to 1800 | 0% |
Crowd Forecast Profile
| Participation Level | |
|---|---|
| Number of Forecasters | 147 |
| Average for questions older than 6 months: 61 | |
| Number of Forecasts | 784 |
| Average for questions older than 6 months: 233 | |
| Accuracy | |
|---|---|
| Participants in this question vs. all forecasters | better than average |