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- Level: Laboratory Advisory
- Audience: Clinical Laboratory Professionals

Reports of increased parvovirus B19 activity
On August 13, 2024, the U.S. Centers for Disease Control and Prevention (CDC) issued a Health Alert Network (HAN) Health Advisory about current increases in human parvovirus B19 activity, a seasonal respiratory virus that is transmitted through respiratory droplets by individuals with symptomatic or asymptomatic infection. In early 2024, public health authorities in 14 European countries observed unusually high numbers of cases of parvovirus B19. Although there is currently no routine surveillance for parvovirus B19 in the U.S., CDC has received reports of increased parvovirus B19 activity in the United States.
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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)