National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Staphylococcus aureus is colonized in anterior nares, throat, axilla, groin, pharynx and gastrointestinal tract and damaged skin surface. Colonization provides a reservoir from which bacteria can be introduced in the body in immunocompromised. Fifty individuals newly diagnosed with Human Immunodeficiency Virus (HIV) infection and 50 non infected individuals were screened for nasal and throat carriage of Staphylococcus aureus after obtaining informed consent. Methicillin sensitive screening and other antimicrobial susceptibility testing was conducted using the disc diffusion method. The strains were characterized by phage typing. Four of 50 (8%) HIV infected individuals were colonized with Staphylococcus aureus in the throat while 22 (44%) were colonized in nares. None of the HIV non-infected cases had Staphylococcus aureus in the throat but 11 (22%) was colonized with S. aureus in the nares. The difference in the throat carriage rate between the HIV infected and HIV non infected group was not significant (p=0.117). Out of the four, only one HIV infected individual had exclusive throat carriage. Three out of the four strains were typable using the conventional set of phages. Only single strain was non typable. Interestingly, in the three individuals with both the throat and nasal colonization, each isolate from nasal and throat proved to have a different phage pattern. Screening limited to anterior nares may miss those individuals who may have colonization of the throat with a different strain of Staphylococcus aureus as well as exclusive colonization of throat.
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