Epidemiological update
11 May 2022
The aetiology and pathogenetic mechanisms of disease are still under investigation. A possible association with current adenovirus infection has been found in cases in the UK in particular but other hypotheses and possible co-factors are under investigation. Most cases continue to be reported as sporadic un-linked cases.
This report presents an update of probable cases identified in the European Union/European Economic Area (EU/EEA) and worldwide. Whereas cases detected in the EU/EEA have been reported according to the ECDC/WHO case definition, worldwide cases are collected through screening of official websites and media sources and therefore different case definitions could have been used.
Case definition used in EU/EEA:
In EU/EEA countries, approximately 105 cases have been identified in 13 EU/EEA countries as of 10 May 2022.
Table 1. Number of identified cases by country, EU/EEA, 10 May 2022 ...
11 May 2022
The aetiology and pathogenetic mechanisms of disease are still under investigation. A possible association with current adenovirus infection has been found in cases in the UK in particular but other hypotheses and possible co-factors are under investigation. Most cases continue to be reported as sporadic un-linked cases.
This report presents an update of probable cases identified in the European Union/European Economic Area (EU/EEA) and worldwide. Whereas cases detected in the EU/EEA have been reported according to the ECDC/WHO case definition, worldwide cases are collected through screening of official websites and media sources and therefore different case definitions could have been used.
Case definition used in EU/EEA:
- Confirmed: N/A
- Probable: A person presenting with an acute hepatitis (non-hepatitis viruses A, B, C, D and E*) with aspartate transaminase (AST) or alanine transaminase (ALT) over 500 IU/L, who is 16 years old or younger, since 1 October 2021.
- Epi-linked: A person presenting with an acute hepatitis (non-hepatitis viruses A, B, C, D and E*) of any age who is a close contact of a probable case since 1 October 2021.
In EU/EEA countries, approximately 105 cases have been identified in 13 EU/EEA countries as of 10 May 2022.
Table 1. Number of identified cases by country, EU/EEA, 10 May 2022 ...