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Abstract

Since autumn 2022, observed numbers of paediatric invasive group A infections in Portugal (n = 89) were higher than in pre-COVID-19 seasons. Between September 2022 and May 2023, the dominant diagnoses were pneumonia (25/79), mostly with empyema (20/25), and sepsis (22/79). A number of cases required admission to intensive care (27/79) and surgery (35/79), and the case fatality rate was 5.1% (4/79). Genomic sequencing (n = 55) revealed multiple genetic lineages, dominated by the M1 sublineage (26/55) and more diverse 12 isolates (12/55).

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/content/10.2807/1560-7917.ES.2023.28.36.2300427
2023-09-07
2024-03-01
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2023.28.36.2300427
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