Health authorities worldwide have reported nearly 200 cases of severe acute hepatitis in young children over recent months, including two in France. The cause remains unknown, but the European Centre for Disease Prevention and Control (ECDC) warns of a high potential impact on the pediatric population. Here's what leading experts know so far.
Hepatitis refers to liver inflammation, often triggered by viruses (such as hepatitis A, B, C, D, or E), drugs, alcohol, medications, or toxins. These emerging cases are particularly puzzling in children, as common viral causes have been ruled out by thorough testing.
To date, around 190 cases have surfaced globally, with approximately 100 in the UK alone. Other affected countries include the United States, Denmark, Ireland, France, Israel, the Netherlands, Spain, Italy, Norway, Romania, and Belgium. Most cases involve children under 10 years old—many under 5—with no underlying health conditions. Tragically, 17 children needed liver transplants, and at least one has died.
Typical signs mirror other liver conditions: jaundice (yellowing of the skin or eyes), plus gastrointestinal issues like abdominal pain, diarrhea, and vomiting. Additional symptoms can include fatigue, loss of appetite, dark urine, pale stools, and joint pain.
The exact cause is still under investigation. Authorities suspect a link to adenovirus 41, which commonly causes gut issues in kids. Some affected children tested positive, though not all, so caution is advised. While this virus has been associated with hepatitis in immunocompromised children before, it is not typically linked to cases in healthy children.
On Thursday, the ECDC classified these incidents as a "public health event of concern", citing the unknown etiology, pediatric focus, and potential for serious outcomes.
