Browsing by Author "Ramirez, Mario"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
- Sustained increase of paediatric invasive Streptococcus pyogenes infections dominated by M1UK and diverse emm12 isolates, Portugal, September 2022 to May 2023Publication . Gouveia, Catarina; Bajanca-Lavado, Maria Paula; Mamede, Rafael; Araújo Carvalho, Ana; Rodrigues, Fernanda; Melo-Cristino, José; Ramirez, Mario; Friães, Ana; Portuguese Group for the Study of Streptococcal Infections; Portuguese Study Group of Pediatric Invasive Streptococcal DiseaseSince autumn 2022, observed numbers of paediatric invasive group A Streptococcus 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 M1UK sublineage (26/55) and more diverse emm12 isolates (12/55).