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Indian Journal of Medical Microbiology
Medknow Publications on behalf of Indian Association of Medical Microbiology
ISSN: 0255-0857
EISSN: 0255-0857
Vol. 28, No. 2, 2010, pp. 152-154
Bioline Code: mb10044
Full paper language: English
Document type: Short Communication
Document available free of charge

Indian Journal of Medical Microbiology, Vol. 28, No. 2, 2010, pp. 152-154

 en Significance of MRSA strains in community associated skin and soft tissue infections
Shenoy, M.S.; Bhat, G.K.; Kishore, A. & Hassan, M.K.

Abstract

The study was conducted to determine the antibiotic susceptibility profile of community-associated methicillin resistant Staphylococcus aureus check for this species in other resources (CAMRSA) strains isolated from infections. S. aureus strains were isolated from clinical specimens using the standard procedures. CDC definition was used to classify CAMRSA. Antibiotic susceptibility test was done using Kirby-Bauer disk diffusion method. Double disk diffusion method (D-test) was used to detect inducible macrolide, lincosamide and streptogramin B resistance (inducible MLS B resistance). A total of 83 CAMRSA were isolated from abscesses and other skin infections in persons without known risk factors for MRSA infection. All CAMRSA were susceptible to vancomycin. Out of 83 CAMRSA, 13 (15.65%) were D-test positive (inducible MLSB positive) and 6 (7.23%) were positive for constitutive MLSB resistance. Eight strains (9.63%) were resistant to tetracycline and 26 (31.32%) strains were resistant to erythromycin. Increased rate of inducible clindamycin resistance among CAMRSA indicates the importance of identification of such strains by D test to avoid treatment failure when clindamycin is used.

Keywords
Community-associated MRSA, D test, inducible clindamycin resistance

 
© Copyright 2010 Indian Journal of Medical Microbiology.
Alternative site location: http://www.ijmm.org

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