Prevalence of Bacteria Associated with Mobile Phones of Inpatients in Some Hospitals in Ardo-Kola Metropolis, Nigeria

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Published: 2024-04-08

Page: 112-124

Emmanuel Allahnanan

Department of Biological Sciences, Taraba State University, Jalingo, Nigeria.

Samuel Kennedy Banja

Department of Biological Sciences, Taraba State University, Jalingo, Nigeria.

Waetsi Nya Yusufu *

Department of Biological Sciences, Taraba State University, Jalingo, Nigeria.

Fred Grace Wayas

Department of Biological Sciences, Taraba State University, Jalingo, Nigeria.

*Author to whom correspondence should be addressed.


Mobile phones are carried everywhere thus coming in contact with various surfaces. Inpatients' mobile phones may contain potential nosocomial causing microbes to the inpatient, family members, and the general public. Thirty-two (32) inpatient phones were chosen at random from three study areas to see if they could function as formites and contain bacteria that could be transferred. First Referral Hospital Sunkani, Primary Healthcare Kofai and Lafiya clinic ATC) in Ardo Kola Local Government, Taraba State were the study area. The goal of this study was to determine the prevalence of bacterial contamination on inpatients' phones and to identify bacterial isolates. A swab sample from each inpatient's phone (using a moist sterile swab), as well as a self-administered questionnaire, was retrieved. Samples were cultured in nutrient, blood and macConkey’s agar using the streak method, bacteria were identified using Gram staining and a few biochemical assays (indole, citrate utilization, catalase, oxidase, coagulase, and urease test). The overall prevalence of mobile phone contamination with one or more bacteria was 90.6 percent, with the most common bacteria isolates being Staphylococcus aureus (46.9%) and Escherichia coli (34.4%), and the least common bacteria isolates being Klebsiella spp. (12.5%) and Enterococcus spp. (12.5%). As a result, using various methods to control the growth of bacteria, such as restricting mobile phone use in hospitals and implementation of proper hand washing hygiene, is necessary to shed bacterial burden and reduce contamination.

Keywords: Nosocomial, prevalence, inpatients, mobile phones, formites

How to Cite

Allahnanan , E., Banja , S. K., Yusufu, W. N., & Wayas , F. G. (2024). Prevalence of Bacteria Associated with Mobile Phones of Inpatients in Some Hospitals in Ardo-Kola Metropolis, Nigeria. Asian Journal of Research in Biosciences, 6(2), 112–124. Retrieved from


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Heeks R. “ICT4D 2.0: The next phase of applying ICT for international development”. In Computer; 2008.

Ekrakene T, Igeleke CL. Microorganisms associated with public mobile phones along Benin-Sapele express way, Benin city, Edo-State of Nigeria. Journal of Applied Science Research. 2007;3(12): 2009-2012.

Al‐Abdalall AH. Isolation and identification of microbes associated with mobile phones in Dammam in Eastern Saudi Arabia. Journal of Family Community Medicine. 2010;17(1):11‐14.

Anupriya A, Puhalenthi K, Keerthi SJ. Microbial contamination of mobile phones in a tertiary care hospital. International Journal of Community Medicine in Public Health. 2018;25(6):2313.

Brady RR, Wasson A, Stirling I, McAllister C, Damani NN. Is your phone bugged? The incidence of bacterial phone to cause nosocomial infections on healthcare workers cell phone. Journal of Hospital Infection. 2006;62:123-125.

Kilic I, Ozaslan M, Karagoz I, Zer Y, Davutoglu V. The microbial colonisation of mobile phone used by healthcare staff. Pakistan Journal of Biological Sciences. 2009;12(11):882-884.

Karabay O, Kocoglu E, Tahtaci M. The role of mobile phones in the spread of bacteria associated with nosocomial infections. Journal of Infection in Developing Countries. 2007;1:72–73.

Tambekar D, Gulhane P, Dahikar S, Dudhane M. Nosocomial hazards of doctors mobile phones in hospitals. Journal of Medical Science. 2008;8:73-76.

Arora U, Devi P, Chadha A, Malhotra S. Cell phones, a modern safe house for bacterial pathogens. Journal of Medical Education and Research Science. 2009; 11(3):127–129.

Chawla K, Mukhopadhayay C, Gurung B, Bhate P, Bairy I. Bacterial ‘cell’ phones: Do cell phones carry potential pathogens? Online Journal of Health Allied Science. 2009;8(1):1-5.

Ulger F, Esen S, Dilek A, et al. Are we aware how contaminated our mobile phones with nosocomial pathogens? Annals of Clinical Microbiology and Antimicrobials. 2009;8:71-89.

Sadat AM, Al-Omram AK, Azam Q, Bukari H, Al-Zahrani A, Al-Turki R, Al-Omram AS. Bacterial flora on cell phones of health care providers in a teaching institution. American Journal of Infection Control. 2010;38:404-405.

Khan HA, Baig FK, Mehboob R. Nosocomial infections: Epidemiology, prevention, control and surveillance. Asian Pacific Journal of Tropical Biomedicine. 2017;7(5):478-482.

Olise C, Simon OI. Fomites: Possible vehicle of nosocomial infections. Journal of Public Health and Nutrition. 2018;01(01).

Boev C, Kiss E. Hospital-acquired infections: Current trends and prevention. Crit Care Nurs Clin North Am. Organisation Mondiale de la Santé Pourquoi un Défi Mondial Sur les Infections Nosocomiales. Geneva, Switzerland: Organisation Mondiale de la Santé. 2016;29(1):51-65.

Jagadeesan Y, Deepa M, Kannagi M. Mobile phones as fomites in microbial dissemination. International Journal of Current Science. 2013;5:6-14.

Widerström M, Wiström J, Edebro H, Marklund E, Backman M, Lindqvist P. Colonization of patients, healthcare workers, and the environment with healthcare-associated Staphylococcus epidermidis genotypes in an intensive care unit: A prospective observational cohort study. BMC Infectious Disease. 2016;16(1).

World Health Organization. Prevention of hospital acquired infections: A practical guide, 2nd edition; 2002.

Badr RI, Ibrahim BH, Ali NM. Mobile phones and nosocomial infections. International Journal of Infection Control. 2012;8(2):295.

Angadi K, Misra R, Gupta U, Jadhav S, Sardar M. Study of the role of mobile phones in the transmission of Hospital acquired infections. Medical Journal of Dr. D. Y. Patil University. 2014;7:435-438.

Fauci V. “Clean care is safer care”: Correct handwashing in the prevention of healthcare associated infections. Annali di igiene. 2022;28:409-415.

Lee JY, Chul-Gyu L, Choon-Taek C, Hee SK, Young W, Han-Sung KY, Jae J. Contamination rates between smart cell phones and non-smart cell phones of healthcare workers. ISRN Public Health 2013;6.

Allegranzi B, Pittet D. Role of hand hygiene in health care associated infection prevention. Journal of Hospital Infection. 2009;73(4):305-315.

Khashei R, Ebrahim-Saraie HS, Hadadi M, Ghayem M, Shahraki HR. The occurrence of nosocomial pathogens on cell phones of healthcare workers in an Iranian tertiary care hospital. Infectious Disorders Drug Targets. 2019;19(3):319–325.

Tunç K, Olgun U. Microbiology of public telephones. Journal of Clinical Infections. 2006;53:140-143.

Smith S, Opera I, Goodluck H, Akindolire IO, Folaranmi T, Odekeye A, Omonigbehin AA. Singapore Med Journal. 2009;7:208-211.

Kramer A, Schwebke I, Kamp G. How long do nosocomial pathogens persist on inanimate surfaces? A systematic review. BMC Infectious Diseases. 2006;6: 130-140.

Tankhiwale N, Gupta V, Chavan S, Tawade V. Nosocomial hazards of doctor’s mobile phones. Journal of Medical Science. 2012;9:283–295.

Balapriya P, et al. Screening for nosocomial pathogens in stethoscopes, sphygmomanometers and mobile phones of health care providers in a tertiary care hospital. International Journal Current Microbiology and Applied Sciences. 2016; 5(10):91–8.

Foong YC, Green M, Zargari A, Siddique R, Tan V, Brain T. Mobile phones as a potential vehicle of infection in a hospital setting. Journal of Occupational and Environmental Hygiene. 2015;12(10): D232–D235.

Cheesbough M. District laboratory practice in tropical countries, part 2. Cambridge University Press, Madrid, Spain; 2002.

Criuckshank R, Duguid JP, Marmion DP, Swain P. Medical microbiology 12th edition, Churchhill L Iivingstone, Edinburgh. 2006:370.

Cheesbrough M. Manual of medical microbiology, low price edition. Britain Oxford Press. 2000:251‐260.

MacFaddin JF. Biochemical tests for identification of medical bacteria. 3rd Edition, Lippincott Williams & Wilkins, Philadelphia. 2000:200.

MacWilliams MP. Citrate test protocol; 2009. Available:

Accessed 10th Sept, 2019

Brady RR, Hunt AC, Visvanathan A, Rodrigues MA, Graham C, Rae C, Kalima P, Paterson HM, Gibb AP. Mobile phone technology and hospitalized patients: A cross-sectional surveillance study of bacterial colonization, and patient opinions and behaviours. Clin. Microbiol. Infect. 2011;17:830–835.

Vinod BK, Yahya HH, Ahmed A, Ahmed AJ, Othman MH, Magdeldin E, Anil KB. Prevalence of antibacterial resistant bacterial contaminants from mobile phones of hospital inpatients. Libyan Journal of Medicine. 2014;9(1):25451.

Bures S, Fishbain J, Uyehara CF, Parker J, Berg B. Computer keyboards and faucet handle as reservoirs of nosocomial pathogens in the intensive care unit. American Journal of Infection Control. 2000;28:465-471.

Akinyemi KO, Atapu AD, Adetona OO, Coke RA. The potential role of mobile phonesin the spread of bacterial infections. Journal of infection in Developing Countries. 2009;3:628-632.

Sepehri G, Talebizadeh N, Mirzazadeh A, Mir-shekari T R, Sepehri E. Bacterial contamination and resistance to commonly used antimicrobials of healthcare workers’ mobile phones in teaching hospitals, Kerman, Iran. American Journal of Applied Sciences. 2009;6(5):806.

Pal P, Roy A, Moore G, Muzslay M, Lee E, Alder S, Wilson P, Powles T, Kelly J. Keypad mobile phones are associated with a significant increased risk of microbial contamination compared to touch screen phones. Journal of Infection Prevention. 2013;14(2):65-68.

Husam SA. Bacterial contamination of personal mobile phones in Iraq, Journal of Chemical, Biological and Physical Sciences. 2013;4(2):78-93.

Chaman R, Nargeseyan S, et al. Survey of prevalence and types of bacterial contamination of mobile phones of personnel employed in major wards of educational hospitals in Yasuj. Journal of Fundamental Applied Sciences. 2018;10 (2):449-458.

Datta P, Rani H, Chander J, Gupta V. Bacterial contamination of mobile phones of health care workers. Indian Journal of Medical Microbiology. 2009;27: 279-281.

Linberg EA, Hesselmar B, Wold A. High rate of transfer of staphylococcus aureus from patient skin to infant gut flora. Journal of Clinical Microbiology. 2004;42: 530– 534.

Uabol-Egbenni PO. Incidence of Staphylococcus aureus among healthy humans in Lagos and its environs. Nigerian Journal of Microbiology. 2003;17 (2):162-172.

Ramos JL. Pseudomonas, New York, Kfuwer Academic Plenum Publisher. U. S.A; 2004.

Marc F, Kathleen J, Susan W, et al. Edemic Pseudomonas aeruginosa infection in neonatal intensive care unit. Journal of Clinical Microbiology. 2000;43:1198–1204.

Harrington DJ, Sutcliffe IC, Chanter N. "The molecular basis of streptococcus infection and disease". Microbes Infections. 2002;4(4):501–10.

Fisher K, Phillips C. "The ecology, epidemiology and virulence of enterococcus". Microbiology. 2009;155(6): 1749–57.

Famurewa O, David O. Cell phone: A medium of transmission of bacterial pathogens. World Rural Observations. 2009;1(2):69-72.

Sallam HN, Ezzeldin T, et al. Defining poor responder in assited reproduction. International Journal of Fertile Women Medicine. 2005;50:115-120.

World Health Organisation. The burden of health care-associated infection worldwide; 2016. [Online Available:

Yusha’u M, Bello M, Sule H. Isolation of bacteria and fungi from personal and public mobile cell phones: A case study of Bayero University, Kano (Old Campus). International Journal of Biomedical Health Science. 2010;6(1):97‐102.

Zhao W, Yang S, Huang Q, Cai P. Bacterial cell surface properties: Role of Loosely Bound Extracellular Polymeric Substances (LB-EPS). Colloids Surf B Biointerfaces. 2015;128:600-607.