High Prevalence of Methicillin-Resistant Staphylococcus aureus Among Radiology Technicians in Libya: Expanded Statistical Analysis, Antimicrobial Resistance Patterns, and Implications for Infection Control

Background : Methicillin‑resistant Staphylococcus aureus (MRSA) is a major cause of healthcare‑associated infections, with healthcare workers (HCWs) serving as potential reservoirs for transmission. Data on MRSA colonization among radiology technicians, particularly in Libya, are scarce. Objectives : This study aimed to determine the prevalence and antimicrobial resistance profiles of MRSA among radiology technicians in Misurata City, Libya, and to assess occupational and demographic risk factors. Methods : A cross‑sectional study was conducted in two major hospitals in Misurata between May and June 2024. Hand swabs were collected from radiology technicians and processed using standard microbiological methods. MRSA identification was performed according to Clinical and Laboratory Standards Institute (CLSI) guidelines. Additional data on years of experience and radiology subspecialty were analyzed using Chi‑square, Fisher’s exact, t‑test and Mann–Whitney U tests, effect sizes, and 95 % confidence intervals. Results : Of 60 technicians, 66.7 % carried bacteria; Staphylococcus aureus accounted for 85 % of isolates, with 76.5 % identified as MRSA. The overall prevalence of MRSA colonization among radiology technicians was 43.3% (95% CI: 27–61%), highlighting a notable burden despite the limited sample size. data revealed higher MRSA carriage among less experienced technicians and those working in CT. 23.1 % were resistant to ciprofloxacin and cefotaxime. Conclusions : The high MRSA prevalence highlights the need for targeted infection prevention strategies in radiology departments. Findings align with regional data from Libya, Egypt and East Africa, indicating regional MRSA endemicity.