Factors affecting the nasal carriage of methicillinresistant staphylococcus aureus in human immunodeficiency virus-infected patients

Human immunodeficiency virus-infected patients attending skin outpatient department were studied for nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA) and associated factors affecting nasal colonization. Nasal swabs were used for isolation of S. aureus. MRSA were detected by agar...

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Bibliographic Details
Published in:Indian journal of medical microbiology 2009-04, Vol.27 (2), p.146-148
Main Authors: Chacko, J, Kuruvila, M, Bhat, G K
Format: Article
Language:English
Subjects:
Herpes simplex virus
Staphylococcus aureus
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Summary:Human immunodeficiency virus-infected patients attending skin outpatient department were studied for nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA) and associated factors affecting nasal colonization. Nasal swabs were used for isolation of S. aureus. MRSA were detected by agar screen and agar dilution methods. Careful examination for dermatoses was carried out. Forty-six of the 60 (76.67%) outpatients with HTV infection were colonized with S. aureus in the anterior nares. Significant number of S. aureus carriers were in the 31-40 year age group. Methicillin resistance was found in eight (17.39%) isolates. Of the 46 S. aureus strains, 29 (63%) were resistant to erythromycin, 69.5% to co-trimoxazole and 41.3% to ciprofioxacin. Co-trimoxazole use was found to be a risk factor for S. aureus carriage (P = 0.0214) but not for methicillin resistance. Hospital stay for more than 10 days was a risk factor for methicillin resistance whereas stay for more than 25 days was found to be a highly significant risk factor. Dermatophytosis and herpes simplex virus infection were other risk factors for nasal carriage of S. aureus.
ISSN:0255-0857
DOI:10.4103/0255-0857.49429