The bacterial burden of computer keyboards in cyber cafes located in and around rivers state university of science and technology, port harcourt

Amala Smart Enoch and Nwokah, Easter Godwin

The prevalence of bacteria on computer keyboards in cyber cafes situated in and around Rivers State University of Science and Technology, Port Harcourt, Nigeria was investigated. A total of 200 computer keyboards were examined by culture methods for the presence of bacteria.  Out of the 200 computer keyboards, 40 each were taken from the 4 cyber cafes including the university Information and Communication Centre (ICT).  The numbers examined were: FCB 36(18.0%) had bacteria growth, SPC 20(10.0%), BB 30(15.0%), RGBC 34(17.0%), ICT-RSUST 30(15.0%) respectively. From the results, 58(36.6%) had 1-5 counts, 78(52.6%) had counts from 6-10 counts and 13(8.6%) had counts ranging from 10 and above colonies. The overall percentage occurrences of isolated bacteria were: coagulase-negative Staphylococci 116(55.8%), Staphylococcus aureus 42 (20.2%), Bacillus spp. 24(11.5%) and Escherichia coli 26(12.5%).  Overall prevalence of bacteria from the cyber cafes were FCB 78(37.5%), SPC 38(18.2%), BB 28(13.4%), RGBC 30(14.4%) and ICT-RSUST 34(16.3%).  FCB had the highest prevalence of bacteria and coagulase-negative Staphylococci were highest in percentage occurrences.

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