Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria

The health implications of mobile phones emission have been a matter of concern to health practitioners for decades but little or no attention has been given to the mobile phones as potential fomites for pathogens. This study isolated and characterised methicillin-resistant Staphylococcus aureus (MR...

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Main Authors: Olumuyiwa S. Alabi, Oluwatobi O. Ayoola, Jesutofunmi S. Odeyemi, Anderson O. Oaikhena
Format: Article
Language:English
Published: Nigerian Academy of Science 2022-12-01
Series:The Proceedings of the Nigerian Academy of Science
Subjects:
Online Access:https://nasjournal.org.ng/site/index.php/pnas/article/view/467/217
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author Olumuyiwa S. Alabi
Oluwatobi O. Ayoola
Jesutofunmi S. Odeyemi
Anderson O. Oaikhena
author_facet Olumuyiwa S. Alabi
Oluwatobi O. Ayoola
Jesutofunmi S. Odeyemi
Anderson O. Oaikhena
author_sort Olumuyiwa S. Alabi
collection DOAJ
description The health implications of mobile phones emission have been a matter of concern to health practitioners for decades but little or no attention has been given to the mobile phones as potential fomites for pathogens. This study isolated and characterised methicillin-resistant Staphylococcus aureus (MRSA) on mobile phones of students in a tertiary institution in Ibadan, Nigeria. One hundred swab samples were obtained from the surfaces of mobile phones of students in a cross-sectional study conducted between July and August, 2019. Presumptive staphylococci were isolated on mannitol salt agar and identities were confirmed by standard biochemical test and Gram-staining. Antimicrobial susceptibility test was done by disc-diffusion method and mecA or mecALGA251, tsst-1, eta and etb genes screened by PCR technique. Among the 200 presumptive S. aureus isolated, 163 (81.5%) were confirmed as S. aureus exhibiting resistance to ofloxacin (1.8%), gentamicin (3.7%), ceftriaxone (29.4%), ceftazidime (57.7%), cefoxitin (61.3%), cefuroxime (64.4%), erythromycin (85.3%), amoxicillin-clavulanic acid (86.5%) and cloxacillin (92%). Proportion of MRSA and methicillin-susceptible S. aureus (MSSA) were 61.3% and 38.7% respectively with significant difference in their level of antibiotic resistance to the cephalosporins (excluding ceftriaxone), penicillins, erythromycin and ofloxacin (p<0.05). All the MRSA strains were multidrug resistant (MDR) harbouring mecA or mecALGA251 (56.3%), tsst-1 (56.3%), etb (31.3%) and eta (12.5%) genes. This study detected a high proportion of methicillin-resistant, virulent S. aureus as fomites on surfaces of mobile phones among students of a tertiary institution. This is of public health concern and thus requires strong public education to avoid imminent spread and outbreaks.
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spelling doaj.art-79f730bf09224fb9a080df977b26f4722023-06-20T11:23:55ZengNigerian Academy of ScienceThe Proceedings of the Nigerian Academy of Science0794-79762705-327X2022-12-011526377https://doi.org/10.57046/KVHM5191Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, NigeriaOlumuyiwa S. Alabi0Oluwatobi O. Ayoola1Jesutofunmi S. Odeyemi2Anderson O. Oaikhena3Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, NigeriaDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, NigeriaDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, NigeriaDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Ibadan, Ibadan, Oyo State, NigeriaThe health implications of mobile phones emission have been a matter of concern to health practitioners for decades but little or no attention has been given to the mobile phones as potential fomites for pathogens. This study isolated and characterised methicillin-resistant Staphylococcus aureus (MRSA) on mobile phones of students in a tertiary institution in Ibadan, Nigeria. One hundred swab samples were obtained from the surfaces of mobile phones of students in a cross-sectional study conducted between July and August, 2019. Presumptive staphylococci were isolated on mannitol salt agar and identities were confirmed by standard biochemical test and Gram-staining. Antimicrobial susceptibility test was done by disc-diffusion method and mecA or mecALGA251, tsst-1, eta and etb genes screened by PCR technique. Among the 200 presumptive S. aureus isolated, 163 (81.5%) were confirmed as S. aureus exhibiting resistance to ofloxacin (1.8%), gentamicin (3.7%), ceftriaxone (29.4%), ceftazidime (57.7%), cefoxitin (61.3%), cefuroxime (64.4%), erythromycin (85.3%), amoxicillin-clavulanic acid (86.5%) and cloxacillin (92%). Proportion of MRSA and methicillin-susceptible S. aureus (MSSA) were 61.3% and 38.7% respectively with significant difference in their level of antibiotic resistance to the cephalosporins (excluding ceftriaxone), penicillins, erythromycin and ofloxacin (p<0.05). All the MRSA strains were multidrug resistant (MDR) harbouring mecA or mecALGA251 (56.3%), tsst-1 (56.3%), etb (31.3%) and eta (12.5%) genes. This study detected a high proportion of methicillin-resistant, virulent S. aureus as fomites on surfaces of mobile phones among students of a tertiary institution. This is of public health concern and thus requires strong public education to avoid imminent spread and outbreaks.https://nasjournal.org.ng/site/index.php/pnas/article/view/467/217mrsamobile phoneetaetbtsst-1mecamecalga251
spellingShingle Olumuyiwa S. Alabi
Oluwatobi O. Ayoola
Jesutofunmi S. Odeyemi
Anderson O. Oaikhena
Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
The Proceedings of the Nigerian Academy of Science
mrsa
mobile phone
eta
etb
tsst-1
meca
mecalga251
title Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
title_full Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
title_fullStr Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
title_full_unstemmed Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
title_short Isolation of pathogenic strains of methicillin-resistant Staphylococcus aureus from mobile phones in a tertiary institution in Ibadan, Nigeria
title_sort isolation of pathogenic strains of methicillin resistant staphylococcus aureus from mobile phones in a tertiary institution in ibadan nigeria
topic mrsa
mobile phone
eta
etb
tsst-1
meca
mecalga251
url https://nasjournal.org.ng/site/index.php/pnas/article/view/467/217
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AT jesutofunmisodeyemi isolationofpathogenicstrainsofmethicillinresistantstaphylococcusaureusfrommobilephonesinatertiaryinstitutioninibadannigeria
AT andersonooaikhena isolationofpathogenicstrainsofmethicillinresistantstaphylococcusaureusfrommobilephonesinatertiaryinstitutioninibadannigeria