Key Findings

The study identifies the first case of staphylococci carrying linezolid resistance genes from patients with chronic sinusitis in Poland. Linezolid resistance in S. aureus was associated with mutations in the ribosomal proteins L3 and L4, while in S. haemolyticus, resistance was associated with the presence of the cfr gene. Additionally, the S. aureus strain harbored optrA and poxtA genes.