Objective. To evaluate Staphylococcus species diversity and methicillin resistance in nosocomial infections.
Materials and Methods. Staphylococci isolated from blood, bronchoalveolar lavage fluid, cerebrospinal fluid, post-operative wound exudates, urine and other samples were identified to species level with MALDITOF mass-spectrometry. Methicillin resistance was evaluated according to EUCAST guidelines.
Results. A total of 3239 consecutive Staphylococcus strains isolated in a tertiary-care medical centre, accumulating patients from all Russian regions were identified in 2016–2017 as 1460 (45.