EVALUATION OF MICROBIAL LOAD ON PUBLIC PHONES AND MOBILE DEVICE’S USED BY UNIVERSITY STUDENTS

Abstract

Mobile phones are used in our daily lives. It has become a widely spread device in today’s life. These devices are carried into different places like; toilet, kitchen, event centers, hospitals, markets etc., which are loaded with harmful microorganisms that can lead to sickness or illness of the human body. Mobile phones and other devices have been reported to be a source of for many microorganisms, With the consent of the students, a total of 15 samples were collected from male and female student’s devices in different colleges in a tertiary institution, and were analyzed using standard microbiological techniques and molecular techniques, such as Biochemical tests, Antibiotic Susceptibility Testing, DNA extraction and PCR. 15 samples were collected out of which five (75%) swab sample tested positive for different type of bacteria. Microbial analysis showed that the mobile devices were contaminated with different types of bacteria. The mobile devices of male students (80%) were found to be more contaminated than that of female students (20%). Staphylococcus aureus was found to be the most dominant bacteria found from the mobile devices. In conclusion, the study results had shown that mobile devices from opposite genders in the tertiary institution were contaminated with at least one or more bacterial isolates. It was noticed that Staphylococcus aureus (90%) were present in four samples and Bacillus spp. (10%) present in a sample. Therefore, people should endeavor to wash their hands, avoid taking their phones into the toilet cause these bacteria hang around the toilet area and keep a proper hygiene.