AIM: to determine the rate of MRSA-carrier among patients, family members and 
health care providers, and the association between MRSA-carrier family members 
and health care providers on MRSA infection patient after orthopaedic surgery.
METHODS: this is a cross-sectional analytical study. Samples were taken 
consecutively during December 2010 to December 2011, consisting of postoperative 
patients infected with MRSA, attending family members, and the medical officers 
with history of contact with the patient. Swab culture were taken from nasal and 
axilla of all subjects. The incidence of MRSA infection, and MRSA-carrier on the 
patient, family members and medical officers were presented descriptively, while 
their association with MRSA infection was statistically tested using Fischer 
exact test.
RESULTS: during the study period, there were 759 surgeries, with 4 (0.5%) 
patients were identified to have MRSA infection. Of these four cases, 48 
subjects were enrolled. The rate of MRSA-carrier among patients, family and 
health care providers were 50%, 25% and 0% respectively. There were no 
significant association between MRSA and the rates of MRSA-carrier on the family 
member or health care providers.
CONCLUSION: the incidence of MRSA infection, MRSA-carrier patient, MRSA-carrier 
health care providers, and family member carrier were 0.5%, 50%, 0%, and 25% 
respectively. No significant association found between MRSA-carrier on the 
family member or health care providers and MRSA infection patient. There were no 
MRSA infection found on the health care provider.