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

Ongoing Risk of Dengue Virus Infections
On March 18, 2025, the U.S. Centers for Disease Control and Prevention (CDC) issued a Health Alert Network (HAN) Health Update about the ongoing risk of dengue virus infections and updated testing recommendations in the United States. Dengue activity remains high in some parts of the United States and globally, with many countries reporting higher-than-usual number of dengue cases in 2024 and 2025.
Please review the HAN for more information including updated testing recommendations and recommendations for healthcare providers, health departments, and the public.
We encourage you to share this message widely with your network(s).
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)