Frequency and Risk Factors of CA-MRSA Nasal Colonization among HIV- Infected Patients of Emam Khomeini Hospital,Tehran,Iran

Community associated methicillin- resistant staphylococcus aureus has been a great threat in general health worldwide. We determined the epidemiology of CA-MRSA nasal colonization among HIV- infected patients who referred to outpatient behavioral health clinic at Emam Khomeinihospital in Tehran. In analytic cross-sectional study, we obtained nasal swabs from HIV- infectedpatients. CA-MRSA colonization was defined as positive MRSA cultures among persons lackinghealthcare exposure. Of 155 samples, 10 (6.5%)were colonized with staphylococcus aureus. 4(40%)ofconfirmed SA isolates were identified as CA-MRSA. recently incarcerated patients had the highestcolonization prevalence. No other variables including, current receipt of antiretroviral therapy, lackof TMP/SMX prophylaxis, male homosexuality, recent ß lactam exposure, IDU, viral loads, orCD4 count were significantly associated with CA-MRSA. In Iran CA-MRSA nasal colonization among HIV- infected patients wasn' t moreprevalent than general population unless recently incarcerated ones.