IMPACT OF STAPHYLOCOCCUS SPP. ON OCCURRENCE OF INFECTIOUS INFLAMMATORY PROCESSES IN SURGICAL PATIENTS: A BACTERIOLOGICAL STUDY

Introduction. Staphylococci are well-known pathogens associated with purulent-inflammatory processes at various body sites. However, the specific contributions of different microorganisms within microbial communities remain poorly understood. Notably, these diverse microbes can exhibit distinct antibiotic susceptibility profiles due to their varying taxonomic classifications. The purpose of this study is to analyze the results of bacteriological examination of pathological material taken from patients in surgical department and to assess the contribution of S. aureus and coagulase-negative staphylococci in the form of mono- and mixed infection in the cases of infectious pathology. Results and discussion. 123 samples were obtained from patients in the surgical department; cultures of Staphylococcus bacteria were isolated in 37 cases, which accounted for 30.1% of all studies. Staphylococcus aureus was identified in 18 cultures (14.6%), with 11 isolates (8.9%) found as single infections (monoculture) and 7 isolates (5.7%) identified within mixed microbial communities. Additionally, 19 isolates (15.4%) were identified as coagulase-negative staphylococci. These microbial communities comprised 2 to 4 different types of microorganisms. Conclusion. Staphylococcus spp. were isolated from 30.1% of patients in the surgical department. Among these isolates, Staphylococcus aureus was present in 38.9% of mixed microbial cultures, while coagulase-negative staphylococci were found in 33.3% of Staphylococcus isolations. Notably, S. aureus and coagulase-negative staphylococci were never co-isolated within the same mixed culture.