The Effect of Hand Treatments on Staphylococcus Aureus: A Normal Flora of the Human Palms

Adesola Adetutu Ajayi, Banke Titilope Aiyedun, Grace Iyabo Olasehinde


A total of forty samples of hand swabs obtained from female and male students’ palms at Covenant University, Ota were studied and examined for the presence of S. aureus. The samples were inoculated on Mannitol Salt agar (MSA) and incubated at 37oC for 24h and 48h. Colonies which appeared yellow on MSA were subjected for further tests. Macroscopic examination indicated that the organism was Gram positive after the Grams staining technique and that they appeared in clusters and spherical (coccoid) in shape under the microscope. The isolates were characterized using several biochemical tests. The organism fermented Glucose, Lactose, and Sucrose with acid production without gas and Starch with gas production only. The isolates were susceptible to Ciprofloxacin, Gentamycin, Pefloxacin and Amoxycillin but resistant to Erythromycin, Ceftriazone and Cotrimoxazole antibiotics. The effect of hand treatments on the microbial flora of the palms were studied and washing of hands thoroughly with soap, water and using an alcohol based hand sanitizer can prevent the spread of staphylococcus skin infections.

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