Browse > Article

Presence of Bacteria and Fungi in Inner Compartment of Personal Computers(PCs)  

Kwon, Kil-Koang (Department of Microbial Engineering, Konkuk University)
Yoon, Seok-Min (Department of Microbial Engineering, Konkuk University)
Choi, Chang-Ho (Department of Microbial Engineering, Konkuk University)
Jeong, Bong-Geun (Department of Microbial Engineering, Konkuk University)
Lee, Ki-Won (Department of Microbial Engineering, Konkuk University)
Yi, Dong-Heui (Department of Microbial Engineering, Konkuk University)
Kim, Hyung-Joo (Department of Microbial Engineering, Konkuk University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.29, no.6, 2007 , pp. 728-733 More about this Journal
Abstract
Presence and distribution of bacteria and fungi in inner compartment of PCs(Personal Computers) were investigated. Samples for the analysis were collected from inside of PCs which had been used in various facilities including public computer facilities, laboratories and computer training rooms of a university. Total number of PC examined in this study was 51 each. When the total CFU(colony forming unit) of the inner compartment of the PCs was measured, the bacterial count was found to be dependent on the operation time(total running time) of PCs. When the distribution of bacteria in the inner compartment of PCs was estimated, CPU(Central Processing Unit) cooling fan area showed the highest bacterial concentration(average 605 $CFU/cm^2$). In the case of the fungi, various opportunistic pathogens including Aspergillus sp. and Penicillium sp. were isolated and identified in the inner compartment of PCs. And the average of bacterial number in the dust collected from the PCs was 212 CFU/mg. These results indicated that handling of PC might have a risk of infection by the microorganism.
Keywords
PC(Personal Computer); Public Computer Facility; Dust; CFU(Colony Forming Unit);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 환경부, 04년도 생산자 책임 재활용 제도 재활용의무 이행결과 및 향후 계획(2005)
2 Bures, S., Fishbain, J. T., Uyehara, C. F. T., Parker, J. M., and Berg, B. W., 'Computer keyboards and faucet handles as reservoirs of nosocomial pathogens in the intensive care unit,' Am. J. Infect. Control, 28, 465-470(2000)   DOI   ScienceOn
3 Schultz, M., Gill, J., Zubairi, S., Huber, R., and Gordin, F., 'Bacterial contamination of computer keyboards in a teaching hospital,' Infect. Control Hosp. Epidemiol., 24, 302-303(2003)   DOI   ScienceOn
4 Neely, A. N. and Sittig, D. F., 'Basic Microbiologic and infection control information to reduce the potential transmission of pathogens to patients via computer hardware,' J. Am. Med. Inform. Assoc., 9, 500-508(2002)   DOI
5 Watson, S. P., Clements, M. O., and Foster, S. J., 'Characterization of the starvation-survival response of Staphylococcus aureus,' J. Bacteriol., 180, 1750-1758(1998)   PUBMED
6 Neely, A. N. and Maley, M. P., 'Survival of enterococci and staphylococci on hospital fabrics and plastic,' J. Clin. Microbiol., 38, 724-726(2000)   PUBMED
7 Rangel-Frausto, M. S., Houston, A. K., Bale, M. J., Fu, C., and Wenzel, R. P., 'an experimental model for study of candida survival and transmission in human volunteers,' Eur. J. Clin. Microbiol. Infect. Dis., 13, 590-595 (1994)   DOI
8 통계청, 한국의 사회지표(2003)
9 Eduard, W. and Heederik, D., 'Methods for quantitative assessment of airborne levels of noninfectious microorganisms in highly contaminated work environments,' Am. Ind. Hyg. Assoc. J., 59, 113-127(1998)   DOI   ScienceOn
10 Noskin, G. A., Bednarz, P., Suriano, T., Reiner, S., Peterson, L. R., 'Persistent contamination of fabric-covered furniture by vancomycin-resistant enterococci: Implications for upholstery selection in hospitals,' Am. J. Infect. Control, 28, 311-313(2000)   DOI   ScienceOn
11 Larone, D. H., Medically important fungi: A guide to identification, 4th ed., ASM Press, Washington D. C., pp. 140-271(2002)
12 Neely, A. N., 'A survey of gram-negative bacteria survival on hospital fabrics and plastics,' J. Burn. Care. Rehabil., 21, 523-527(2000)   DOI   ScienceOn
13 Man, G. S., Olapoju, M., Chadwick, M. V., Vuddamalay, P., Hall, A. V., Edwards, A., and Kerr, J. R., 'Bacterial contamination of ward-based computer terminals,' J. Hosp. Infect., 52, 314-315(2002)   DOI   ScienceOn
14 이찬중, 임시규, 김병천, 박완, '양파 부패병변에서 분리한 세균의 특성,' Kor. J. Microbiol. Biotechnol., 33(4), 248-254(2005)   과학기술학회마을
15 Neely, A. N., Maley, M. P., and Warden, G. D., 'Computer keyboards as reservoirs for Acinetobacter baumannii in a burn hospital,' Clin. Infect. Dis., 29, 1358-1360(1999)   PUBMED
16 Quinzio, L., Blazek, M., Hartmann, B., Rohrig, R., Wille, B., Junger, A., and Hempelmann, G., 'Computers in anesthesia and intensive care: Lack of evidence that the central unit serves as reservoir of pathogens,' Int. J. Hyg. Environ. Health, 208, 299-304(2005)   DOI   ScienceOn
17 환경부, 실내공기질관련법(2003)
18 Neely, A. N., Joan, M., Weber., Patricia, C., Alastair, M., Carlos, M., Marie, N., Patricia, B., and Donald, L., 'Computer equipment used in patient care within a multihospitals for cleaning and disinfection,' Am. J. Infect. Control, 33(4), 233-237(2005)   DOI   ScienceOn
19 박경수, 최상곤, 홍진관, '다중이용시설의 실내공기 미생물 오염실태에 관한 연구', Kor. J. Air-Conditioning Refrigeration Eng., 18(8), 620-626(2006)   과학기술학회마을
20 한국전산원, 국가정보화백서, pp. 19-20(2006)
21 Neely, A. N. and Orloff, M. M., 'Survival of some medically important fungi on hospital fabrics and plastics,' J. Clin. Microbiol., 39, 3360-3361(2001)   DOI
22 이헌준, '실내환경으로부터 분리되는 곰팡이,' Annual. Rev. Inst. Anim. Med., 6, 5-10(1997)