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Pertussis epidemic in Denmark, August 2023 to February 2024
- Anne Christine Nordholm1 , Hanne-Dorthe Emborg1 , Sarah Kristine Nørgaard1 , Ulrikka Nygaard2,3 , Aoife Ronayne4 , Lise Birk Nielsen1 , Bolette Søborg1 , Peter H Andersen1 , Tine Dalby1
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View Affiliations Hide AffiliationsAffiliations: 1 Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark 2 Department of Paediatrics and Adolescents, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark 3 Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark 4 Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, DenmarkCorrespondence:Anne Christine Nordholmanch ssi.dk
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Citation style for this article: Nordholm Anne Christine, Emborg Hanne-Dorthe, Nørgaard Sarah Kristine, Nygaard Ulrikka, Ronayne Aoife, Nielsen Lise Birk, Søborg Bolette, Andersen Peter H, Dalby Tine. Pertussis epidemic in Denmark, August 2023 to February 2024. Euro Surveill. 2024;29(14):pii=2400160. https://doi.org/10.2807/1560-7917.ES.2024.29.14.2400160 Received: 16 Mar 2024; Accepted: 04 Apr 2024
Abstract
We report a record high pertussis epidemic in Denmark since August 2023. Highest incidence was in adolescents, while peak incidence in infants was lower vs previous epidemics in 2019 and 2016. Among infants aged 0–2 months, over half (29/48) were hospitalised and one infant died, underlining the disease severity in the youngest. To protect infants, pertussis vaccination in pregnant women was introduced in January 2024 in the national vaccination programme. Improved vaccination surveillance in pregnant women is being implemented.
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