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Characteristics of Streptococcus pyogenes causing invasive infections among adults in Portugal, 2016–2019: Pre-COVID-19 expansion of the M1UK sublineage

20 Feb 2025

Abstract excerpt

Genome-based epidemiological surveillance of Streptococcus pyogenes (Lancefield Group A Streptococcus , GAS) infections facilitated the detection of emergent successful lineages, such as the M1 UK sublineage. This sublineage dominated the post-COVID-19 upsurge of invasive GAS infections (iGAS) in multiple countries, including Portugal. Here, we characterized the genetic lineages causing iGAS in Portugal during...

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PMID: 40021403
DOI: 10.1016/j.jmii.2025.01.009

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