CDC HAN Alert: Updated Recommendations for Adenovirus Testing in Children with Hepatitis

5/11/22 — The CDC is issuing a Health Alert Network (HAN) Health Update to provide updated information and recommendations about an epidemiologic investigation of pediatric cases of hepatitis of unknown etiology in the United States. As of May 5, 2022, CDC and state partners are investigating 109 children with hepatitis of unknown origin across 25 states and territories, more than half of whom have tested positive for adenovirus with more than 90% hospitalized, 14% with liver transplants, and five deaths under investigation. Read more.