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Macrolide-resistant Bordetella pertussis strain identified during an ongoing epidemic, Finland, January to October 2024
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View Affiliations Hide AffiliationsQiushui Heqiushui.he utu.fi
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Citation style for this article: . Macrolide-resistant Bordetella pertussis strain identified during an ongoing epidemic, Finland, January to October 2024. Euro Surveill. 2024;29(49):pii=2400765. https://doi.org/10.2807/1560-7917.ES.2024.29.49.2400765 Received: 19 Nov 2024; Accepted: 05 Dec 2024
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Abstract
Since April 2024, a pertussis epidemic has been ongoing in Finland with 2,215 notified cases by end October. Of them, 30.1% (n = 667) were aged 10–14 years. Of the 462 Bordetella pertussis isolates characterised, one was macrolide-resistant (minimum inhibitory concentration (MIC) of erythromycin, azithromycin and clarithromycin > 256 μg/mL). The resistant isolate was serotype FIM2, vaccine antigen pertactin-deficient and harboured ptxP3 allele. The emergence of macrolide-resistant B. pertussis in Europe is worrisome and its rapid identification is important.
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