Home›Infectious Disease› CDC surveillance report details measles cases from 25 U.S. jurisdictions
CDC surveillance report details measles cases from 25 U.S. jurisdictionsCDC surveillance report tracks measles cases across 25 U.S. jurisdictions
CDC MMWRPublished April 4, 2026Editorial oversight: Dr. Amelia Tan, PhD · Internal Medicine & Chronic Disease
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Key Takeaway
Note ongoing CDC measles surveillance in 25 jurisdictions; no case data provided.
This is a surveillance report from the CDC detailing measles cases reported by 25 U.S. jurisdictions. The report type, specific population size, and follow-up duration are not reported. No intervention, exposure, comparator, or specific primary or secondary outcomes are described in the provided data.
No main results are reported, including the number of measles cases, effect sizes, absolute numbers, statistical significance, or direction of any findings. The report appears to be a notification of surveillance activity rather than a results-oriented study.
Safety and tolerability data, including adverse events, serious adverse events, and discontinuations, are not reported. No specific limitations of the surveillance are listed. The funding sources and potential conflicts of interest are also not reported.
Given the absence of specific case data, outcomes, or analysis, this report's primary relevance is to confirm that measles surveillance is active in these jurisdictions. It provides no evidence to guide clinical decision-making regarding prevention, diagnosis, or treatment.
The Centers for Disease Control and Prevention (CDC) released a surveillance report tracking measles cases. This report collects information from 25 different U.S. states or local health departments that voluntarily report their data to the national system. It represents routine public health monitoring rather than a research study.
The report does not provide specific numbers about how many measles cases were found, whether cases are increasing or decreasing, or details about who was affected. Surveillance reports like this one help health officials watch for disease patterns and respond to outbreaks when they occur.
Because this is a surveillance report and not a complete study, readers should understand it only shows what was reported from certain areas. It doesn't tell us about measles activity in the entire country or why cases might be occurring. Public health officials use this kind of information to guide their monitoring efforts and vaccination recommendations.
What this means for you:
CDC is monitoring measles reports from some U.S. areas as part of routine public health work.
