Survey of Microbial Contamination on The Floor of Computer Rooms in A University

ABSTRACT

Infectious diseases are those in which pathogens such as viruses and bacteria invade the human body and multiply, causing various adverse effects on the body. To prevent infectious diseases, it is important to sterilize and remove the causative microorganisms, as well as prevent the introduction and movement of microorganisms from the external environment. In our laboratory, we investigated the status of microbial contamination of shoes and floors shared within the university and confirmed that the degree of microbial contamination varied depending on the location. In this study, we investigated general live bacteria, fungi, Staphylococcus aureus, Escherichia coli, and coliform bacteria to determine the status of microbial contamination on the floors of two computer rooms. The number of colonies of general live bacteria and S. aureus tended to increase with the number of users, and vice versa;this trend was similar for fungi. No characteristic tendency was observed for £ coli and coliform bacteria.