About
- Level: Laboratory Advisory
- Audience: Clinical Laboratory Professionals

Increase in measles cases
On March 18, 2024, the U.S. Centers for Disease Control and Prevention (CDC) issued a Health Alert Network (HAN) message to inform clinicians and public health officials of an increase in global and U.S. measles cases and to provide guidance on measles prevention. Clinical laboratories should review the Lab Tools for Measles for information on collecting and shipping specimens from suspected measles cases.
As a reminder, suspect and confirmed measles cases are immediately reportable to public health, given the need for rapid initiative of case and contact investigations to prevent further spread. Emergency after hours (24/7) on-call contact information for all states can be found at https://www.cste.org/page/EpiOnCall.
We encourage you to share this message widely with your network(s).
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Contact us
Please use the information below if you have any questions.
- If you are a clinical or public health laboratory professional, contact LOCS.
- For media inquiries, contact the CDC Newsroom.
- For all other questions, contact CDC-INFO.
Thank you,
The Laboratory Outreach Communication System
Laboratory Outreach Communication System (LOCS) | Division of Laboratory Systems (DLS)
Center for Laboratory Systems and Response (CLSR)
Centers for Disease Control and Prevention (CDC)