Publication date: Jun 30, 2026
Community lineages of Staphylococcus aureus emerging in hospitals, such as CC398, have raised concerns. S. aureus CC398 isolates from bloodstream infections (BSI) and nasal colonization of hospitalized patients, during the COVID-19 pandemic, between March/2020 and September/2021, were characterized for antimicrobial susceptibility by disk diffusion test. Spa types and Sequence Type (ST) were analyzed by PCR/sequencing, and genes of resistance, virulence, and human immune evasion cluster (IEC) were accessed by PCR. Of a total of 118 CC398 isolates, 104 were from nasal swabs (4 MRSA and 100 MSSA), and 14 MSSA were from BSI. Forty (33. 9%) patients presented COVID-19, and prior antimicrobial use was common among those colonized (p

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Semantics
| Type | Source | Name |
|---|---|---|
| disease | MESH | Bloodstream Infection |
| disease | MESH | COVID-19 Pandemic |
| disease | MESH | Thas |
| drug | DRUGBANK | Coenzyme M |
| drug | DRUGBANK | Ribostamycin |
| disease | MESH | Maca |
| disease | MESH | CEP |
| disease | MESH | Bacteremia |
| drug | DRUGBANK | Meticillin |
| disease | MESH | Staphylococcal Infections |