NASAL SCREENING FOR METHICILLIN RESISTANT STAPHYLOCOCCUS AUREUS (MRSA) AMONG HEALTH CARE WORKERS AT A TERTIARY CARE HOSPITAL

G. Velvizhi, Sucilathangam G, Srinivasananth K, Revathy C

Abstract


BACKGROUND AND OBJECTIVES: Methicillin-resistant Staphylococcus aureus (MRSA) is an important cause of
Hospital-acquired infections in many countries. Mainly Health Care workers (HCWs) are at risk for Methicillin-
Resistant Staphylococcus aureus (MRSA) carriage.
MATERIALS AND METHODS: A Cross-sectional study was conducted among 50 Health Care Workers (HCWs) screened for carriage of
MRSA. Swabs of Anterior nares were taken, transported and inoculated on blood agar and incubated at 37°C for 24 hours. After incubation,
growth was identied as Staphylococcus aureus on the basis of colony morphology, Gram stain, and catalase and coagulase test. (Slide and
Tube)MRSA was identied using Cefoxitin disc diffusion methods.
RESULTS: Overall carriage rate was 4% with 2% in theatre staffs and nursing staffs. All the MRSA isolates were resistant to Penicillin sensitive
to all the tested antibiotics. Health Care workers were the potential colonizers of Methicillin Resistant Staphylococcus aureus.
CONCLUSIONS: These carriers may serve as reservoir and disseminator of MRSA, and should be treated with Mupirocin 3 times daily for 5
days prolonged hospital stay and improper hand washing were found to be the major risk factors for MRSA colonization, although it would
require screening of larger numbers before arriving at any denite conclusions. There is need for MRSA control policies in hospitals.


Keywords


Methicillinresistant Staphylococcusaureus(MRSA),HealthCare workers,Carriage,Anterior nares,Cefoxitin Disc Diffusion test

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