Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania

Methicillin-resistant Staphylococcus aureus (MRSA) among health care workers (HCWs) increases the risk of spreading the organism in hospital settings. A cross-sectional study was conducted between June and October 2016 among HCWs in tertiary and regional hospitals in Dar es Salaam, Tanzania, to dete...

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Main Authors: Agricola Joachim, Sabrina J. Moyo, Lillian Nkinda, Mtebe Majigo, Sima Rugarabamu, Elizabeth G. Mkashabani, Elia J. Mmbaga, Naboth Mbembati, Said Aboud, Eligius F. Lyamuya
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:International Journal of Microbiology
Online Access:http://dx.doi.org/10.1155/2018/5058390
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author Agricola Joachim
Sabrina J. Moyo
Lillian Nkinda
Mtebe Majigo
Sima Rugarabamu
Elizabeth G. Mkashabani
Elia J. Mmbaga
Naboth Mbembati
Said Aboud
Eligius F. Lyamuya
author_facet Agricola Joachim
Sabrina J. Moyo
Lillian Nkinda
Mtebe Majigo
Sima Rugarabamu
Elizabeth G. Mkashabani
Elia J. Mmbaga
Naboth Mbembati
Said Aboud
Eligius F. Lyamuya
author_sort Agricola Joachim
collection DOAJ
description Methicillin-resistant Staphylococcus aureus (MRSA) among health care workers (HCWs) increases the risk of spreading the organism in hospital settings. A cross-sectional study was conducted between June and October 2016 among HCWs in tertiary and regional hospitals in Dar es Salaam, Tanzania, to determine the MRSA nasal carriage rate. Nasal swabs were collected from HCWs and cultured on mannitol salt agar. S. aureus was identified based on colonial morphology, Gram staining, catalase, coagulase, and DNase test results. MRSA was detected using the cefoxitin disk. Among 379 HCWs enrolled, 157/379 (41.4%) were colonized with S. aureus, of whom 59 (37.6%) were MRSA carriers giving an overall prevalence of 59/379 (15.6%). MRSA carriage was high among HCWs in Temeke (56.9%) and Amana (37.5%) regional hospitals. A high proportion of MRSA carriage was detected among nurses (35, 45.5%). MRSA isolates showed high resistance toward kanamycin (83.7%), gentamicin (83.1%), ciprofloxacin (71.2%), and trimethoprim-sulphamethoxazole (46.8%) compared to methicillin-sensitive S. aureus isolates (p≤0.001). In conclusion, we found a high nasal carriage of MRSA and resistance to commonly prescribed antimicrobial agents among HCWs. Implementation of infection control measures including contact precautions, urgent reporting of MRSA laboratory results, and routine MRSA screening of HCWs is highly needed to reduce MRSA spreading.
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institution Kabale University
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spelling doaj-art-5cbd4a326e6949769f668d039d17252d2025-02-03T01:25:24ZengWileyInternational Journal of Microbiology1687-918X1687-91982018-01-01201810.1155/2018/50583905058390Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, TanzaniaAgricola Joachim0Sabrina J. Moyo1Lillian Nkinda2Mtebe Majigo3Sima Rugarabamu4Elizabeth G. Mkashabani5Elia J. Mmbaga6Naboth Mbembati7Said Aboud8Eligius F. Lyamuya9Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Epidemiology and Biostatistics, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Surgery, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaDepartment of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TanzaniaMethicillin-resistant Staphylococcus aureus (MRSA) among health care workers (HCWs) increases the risk of spreading the organism in hospital settings. A cross-sectional study was conducted between June and October 2016 among HCWs in tertiary and regional hospitals in Dar es Salaam, Tanzania, to determine the MRSA nasal carriage rate. Nasal swabs were collected from HCWs and cultured on mannitol salt agar. S. aureus was identified based on colonial morphology, Gram staining, catalase, coagulase, and DNase test results. MRSA was detected using the cefoxitin disk. Among 379 HCWs enrolled, 157/379 (41.4%) were colonized with S. aureus, of whom 59 (37.6%) were MRSA carriers giving an overall prevalence of 59/379 (15.6%). MRSA carriage was high among HCWs in Temeke (56.9%) and Amana (37.5%) regional hospitals. A high proportion of MRSA carriage was detected among nurses (35, 45.5%). MRSA isolates showed high resistance toward kanamycin (83.7%), gentamicin (83.1%), ciprofloxacin (71.2%), and trimethoprim-sulphamethoxazole (46.8%) compared to methicillin-sensitive S. aureus isolates (p≤0.001). In conclusion, we found a high nasal carriage of MRSA and resistance to commonly prescribed antimicrobial agents among HCWs. Implementation of infection control measures including contact precautions, urgent reporting of MRSA laboratory results, and routine MRSA screening of HCWs is highly needed to reduce MRSA spreading.http://dx.doi.org/10.1155/2018/5058390
spellingShingle Agricola Joachim
Sabrina J. Moyo
Lillian Nkinda
Mtebe Majigo
Sima Rugarabamu
Elizabeth G. Mkashabani
Elia J. Mmbaga
Naboth Mbembati
Said Aboud
Eligius F. Lyamuya
Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
International Journal of Microbiology
title Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
title_full Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
title_fullStr Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
title_full_unstemmed Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
title_short Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania
title_sort nasal carriage of methicillin resistant staphylococcus aureus among health care workers in tertiary and regional hospitals in dar es salam tanzania
url http://dx.doi.org/10.1155/2018/5058390
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