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Published on: November 10, 2023
Adenovirus type 7d outbreak associated with severe clinical presentation, Finland, February to June 2024
Santtu Heinonen1,2,3, Elina Erra4,5, Richard Lundell6
1Department of Public Health, Finnish Institute for Health and Welfare (THL), Helsinki, Finland.
Abstract:
We report an adenovirus outbreak with unusually severe clinical presentation, particularly in military conscripts and their close contacts. During 1 February-30 June 2024, 129 patients with adenovirus infection were hospitalised, 30 were admitted to ICU, 10 required ECMO treatment and six died. Cases consisted of 75 conscripts (58.1%) and 54 civilians (41.9%). Most samples were type 7 (97/108; 89.8%); all 24 sequenced samples were subtype 7d. During 1 August-30 November 2024, 274 additional hospitalised cases were identified from registries.
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