Aamir Hussain, Zaheer Ahmed, Irfan Ali Mirza, Nasir Rafi, Muhammad Fayyaz, Tahir Ghafoor.
Trend of Methicillin Resistance in Coagulase Negative Staphalycocci Isolated from Blood Culture Specimens.
Infect Dis J Jan ;21(2):425-6.

Objective: To determine the frequency of methicillin resistance among coagulase negative staphylococci isolated from blood culture specimens. Methodology: This retrospective descriptive study was conducted at Department of Microbiology, Armed Forces Institute of Pathology, Rawalpindi. Data was collected from the blood culture records of the department. All coagulase negative staphylococci isolated during the period from January 2007 to Dececember 2010 were included and sensitivity to methicillin was noted. Results: A total of 217 coagulase negative staphylococci were isolated from 12188 blood culture specimens received in the department. Out of these, 41% showed methicillin resistance during 2007, 59% during 2008, 60% during 2009 and 66 % during 2010. Conclusion: Methicillin resistance is increasing among coagulase negative staphylococci, isolated from blood samples of patients in our set up.

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