Increasing Incidences and Clonal Diversity of Methicillin-Resistant in the Nordic Countries - Results From the Nordic MRSA Surveillance.

To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked Download Methicillin-resistant Staphylococcus aureus (MRSA) is notifiable in Denmark, Finland, Iceland, Norway and Sweden. The...

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Published in:Frontiers in Microbiology
Main Authors: Petersen, Andreas, Larssen, Kjersti W, Gran, Frode W, Enger, Hege, Hæggman, Sara, Mäkitalo, Barbro, Haraldsson, Gunnsteinn, Lindholm, Laura, Vuopio, Jaana, Henius, Anna Emilie, Nielsen, Jens, Larsen, Anders R
Other Authors: 1Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark. 2Department of Medical Microbiology, St. Olav Hospital, Trondheim, Norway. 3Public Health Agency of Sweden, Solna, Sweden. 4Department of Clinical Microbiology, Landspitali University Hospital and University of Iceland, Reykjavik, Iceland. 5Finnish Institute for Health and Welfare, Helsinki, Finland. 6Institute of Biomedicine, University of Turku, Turku, Finland. 7Clinical Microbiology Laboratory, Turku University Hospital, Turku, Finland. 8Infectious Disease Epidemiology & Prevention, Statens Serum Institut, Copenhagen, Denmark.
Format: Article in Journal/Newspaper
Language:English
Published: Frontiers Research Foundation 2021
Subjects:
MRSA
Staphylococcus aureus
epidemiology
spa-typing
surveillance
Bakteríusjúkdómar
Sýklalyfjaónæmi
Methicillin Resistance
Norway
Iceland
Online Access:http://hdl.handle.net/2336/621851
https://doi.org/10.3389/fmicb.2021.668900
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Summary:To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked Download Methicillin-resistant Staphylococcus aureus (MRSA) is notifiable in Denmark, Finland, Iceland, Norway and Sweden. The prevalence of MRSA in this region has been low for many years, but all five countries experience increasing numbers of new cases. The aim of the study was to describe the molecular epidemiology in the Nordic countries 2009-2016. Numbers of new cases of MRSA from 1997 to 2016 were compared, and a database containing information on spa-type and place of residence or acquisition, for all new MRSA isolates from 2009 to 2016 was established. A website was developed to visualize the geographic distribution of the spa-types. The incidence of new MRSA cases increased in all Nordic countries with Denmark having 61.8 new cases per 100,000 inhabitants in 2016 as the highest. The number of new cases 2009 to 2016 was 60,984. spa-typing revealed a high genetic diversity, with a total of 2,344 different spa-types identified. The majority of these spa-types (N = 2,017) were found in 1-10 cases. The most common spa-types t127/CC1, t223/CC22, and t304/CC6:8 increased significantly in all Nordic countries during the study period, except for Iceland, while spa-type t002/CC5 decreased in the same four countries. The trends of other common spa-types were different in each of the Nordic countries. The Nordic countries were shown to share similar trends but also to have country-specific characteristics in their MRSA populations. A continued increasing numbers of MRSA will challenge the surveillance economically. A more selected molecular surveillance will probably have to be employed in the future. Svenska Lakarsallskapet

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