Comment on: Occurrence of Vancomycin-Resistant Staphylococcus aureus (VRSA) in Clinical and Community Isolates with in the University of Port Harcourt

I read with interest the article entitled ‘Occurrence of Vancomycin-Resistant Staphylococcus aureus (VRSA) in clinical and community isolates within the university of Port Harcourt’ [1]. The authors wanted to determine the prevalence of vancomycin-resistant S. aureus (VRSA) among 40 isolates of S. aureus. The authors used vancomycin disk diffusion method for the determination of VRSA. However, disk diffusion method is not reliable and should not be used for the determination of vancomycin resistance in S. aureus as well as coagulase negative staphylococci. Isolates of VRSA can be detected by vancomycin MIC testing [2].