ArticleScientific reports2025
Clonal shift and impact of azithromycin use on antimicrobial resistance of Staphylococcus aureus isolated from bloodstream infection during the COVID-19 pandemic.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Staphylococcus aureus CC398 Lineage of the Human Clade Isolated from Bloodstream Infection and Colonization and Spread among Brazilian Patients Hospitalized during the COVID-19 Pandemic.Current microbiology · 2026Article
- Repurposing Azeliragon as a novel antibacterial agent against methicillin-resistant Staphylococcus aureus via combined membrane phospholipids and cell wall targeting.Communications biology · 2026Article
- mGem: Population genomics ofmBio · 2026Article
- Antimicrobial susceptibility and adaptative changes in MRSA lineages exposed to increasing concentrations of fluoroquinolones and chlorhexidine.Scientific reports · 2026Article
- High colonization by multidrug-resistant and virulent Staphylococcus aureus genotypes among critically ill patients in the COVID-19 pandemic in a Brazilian hospital.BMC microbiology · 2025Article
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7 authors.
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Abstract
Staphylococcus aureus is a relevant pathogen in bloodstream infections (BSI), and the emergency of the COVID-19 pandemic increased its antimicrobial resistance. S. aureus isolates from BSI (September/2019 - March/2021) were analyzed phenotypically and molecularly, in addition to the clinical features of the patients. Of 88 S. aureus isolates recovered from 85 patients, 25 were isolated before the pandemic and 63 during it, and 16 were from patients with COVID-19. A rate of 45.5% of methicillin-resistant isolates (MRSA) were found, and 5% of them were ceftaroline susceptible dose-dependent. Daptomycin non-susceptibility was observed in 9.1% of isolates. The USA800/ST5/SCCmecIV lineage was prevalent among MRSA isolates (41.8%). Besides, 30.2% of the isolates were associated with community-associated MRSA (CA-MRSA) genotypes. There was a significant impact on the resistance rates for cefoxitin, clindamycin and erythromycin among S. aureus isolates from BSI in COVID-19 patients and association with the previous use of azithromycin by them (p < 0.05). A clonal alternation and an increase in the emergence of CA-MRSA lineages were also found, highlighting the importance of constant microbiological surveillance.
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