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Antimicrobial resistance patterns and transferable traits in Enterobacteriaceae isolates from poultry in Tlemcen, Algeria

*Barka, M. S., Cherif-Anntar, A., and Benamar, I.

Laboratory of Applied Microbiology in Food, Biomedical and Environment (LAMAABE), Science Department,

Applied Science and Technique Institute, University of Tlemcen, Tlemcen, Algeria

*Correspondence to: mohammedsalih.barka@univ-tlemcen.dz; Tel: 00213556123335; Fax: 0021343277405

Abstract:

Background:  Antibiotics are overused in poultry industry, and this has resulted in the emergence of multidrug resistant (MDR) bacteria. The current study is aimed at determining antimicrobial resistance (AMR) patterns of Enterobacteriaceae isolates from poultry in the west of Algeria.

Methodology: Different chicken samples (kidney, bone and intestine) were collected and processed for culture using standard microbiological methods to isolate Enterobacteriaceae. Isolates were identified biochemically using API 20E, while isolated Escherichia coli was typed for O1, O2 and O78 antigens using slide agglutination with specific antisera. All identified isolates were tested against 26 antibiotic disks using the Kirby Bauer disk diffusion method according to the CLSI standards. The minimum inhibitory concentrations (MICs) of chloramphenicol, tetracycline, nalidixic acid, ofloxacin and ciprofloxacin were determined for selected isolates.  Conjugative plasmid transfer, plasmid incompatibility and colicin tests were used to detect transferable resistance traits in 48 selected E. coli isolates. Continue reading “Antimicrobial resistance patterns and transferable traits in Enterobacteriaceae isolates from poultry in Tlemcen, Algeria”

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Empirical antibiotherapy as a potential driver of antibiotic resistance: observations from a point prevalence survey of antibiotic consumption and resistance in Gombe, Nigeria

*1Manga, M. M., 1Ibrahim, M., 2Hassan, U. M., 2Joseph, R. H., 2Muhammad, A. S.,  3Danimo, M. A., 4Ganiyu, O., 5Versporten, A., and 6Oduyebo, O. O.

1Department of Medical Microbiology and Immunology, Gombe State University/ Federal Teaching Hospital, Gombe, Nigeria

2Department of Medical Microbiology and Immunology, Federal Teaching Hospital, Gombe, Nigeria                 

3Department of Community Medicine, Gombe State University/Federal Teaching Hospital, Gombe, Nigeria

4Department of Medicine, Gombe State University/Federal Teaching Hospital, Gombe, Nigeria

5Laboratory of Medical Microbiology, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp, Belgium

6Department of Medical Microbiology, University of Lagos/Lagos University Teaching Hospital, Lagos, Nigeria

*Correspondence to: drmmanga@gmail.com

Abstract:

Background: Empirical use of antibiotics is a standard practice in the treatment of infections worldwide. However, its over utilization without subsequent culture and antibiotic susceptibility testing could be a major driver of resistance. Over reliance on empirical antibiotherapy is common in most developing countries where antibiotic policies and availability or utilization of clinical microbiology laboratory are suboptimal. A standardized approach to point prevalence survey (PPS) on antimicrobial use (AMU) in hospitals was employed to assess the antimicrobial prescribing practices in Federal Teaching Hospital Gombe (FTHG), Nigeria.

Methodology: A PPS was conducted in April 2019 at FTHG by recruiting all in-patients present in the hospital on the day of survey. Data obtained from patients’ records included details of the type and indication for antibiotherapy. A customized online application developed by the University of Antwerp (www.global–pps.be) was used for data-entry, validation, analysis and reporting.      Continue reading “Empirical antibiotherapy as a potential driver of antibiotic resistance: observations from a point prevalence survey of antibiotic consumption and resistance in Gombe, Nigeria”

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Antibiogram of Pseudomonas species: an important tool to combat antibiotic resistance for patient safety in Gombe, Nigeria

   1Manga, M. M., *1Ibrahim, M., 2Isaac, E. W., 3Hassan, M. D., 3Muhammad, G.,  3Hassan, U. M., and 4Yunusa-Kaltungo, Z.

1Department of Medical Microbiology and Immunology, Gombe State University/ Federal Teaching Hospital, Gombe, Nigeria

2Infectious Diseases Unit, Department of Paediatrics, Gombe State University/  Federal Teaching Hospital, Gombe, Nigeria

3Department of Medical Microbiology and Immunology, Federal Teaching Hospital, Gombe, Nigeria

4Plastic Surgery Unit, Department of Surgery, Federal Teaching Hospital, Gombe, Nigeria

*Correspondence to: mohgembu@yahoo.com; +2348060232264

Abstract:

Background: Pseudomonas species are responsible for different healthcare-associated infections and are inherently resistant to many commonly used antibiotics. Hospital antibiograms are either absent or not regularly available in most healthcare facilities in Nigeria. The objective of this study is to present the antibiogram of Pseudomonas isolates in Federal Teaching Hospital Gombe (FTHG) in order to guide antibiotic prescription for better patient safety in the hospital.    Continue reading “Antibiogram of Pseudomonas species: an important tool to combat antibiotic resistance for patient safety in Gombe, Nigeria”

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Antimicrobial Stewardship Implementation in Nigerian Hospitals: Gaps and Challenges

*1Iregbu, K. C., 1Nwajiobi-Princewill, P. I., 1Medugu, N., 2Umeokonkwo, C. D., 3Uwaezuoke, N. S., 4Peter, Y. J., 5Nwafia, I. N., 6Eliukwu, C., 7Shettima, S. A., 8Suleiman, M. R., 9Awopeju, T. A., 10Udoh, U., 11Adedosu, N., 12Mohammed, A., 13Oshun, P., 14Ekuma, A., 15Manga, M. M., 16Osaigbovo, I. I., 17Ejembi, C. J., 18Akujobi, C. N., 19Samuel, S. O., 20Taiwo, S. S., and 13Oduyebo, O. O.

1National Hospital Abuja, Nigeria;

2Alex Ekwueme Federal Teaching Hospital, Abakaliki;

3Federal Medical Centre, Jabi, Abuja, Nigeria;

4University of Abuja Teaching Hospital, Gwagwalada;

5University of Nigeria Teaching Hospital, Enugu;

6Babcock University Teaching Hospital, Ilishan-Remo, Nigeria;

7Federal Medical Centre, Yola;

8Federal Medical Centre, Katsina;

9University of Port Harcourt Teaching Hospital, Port Harcourt;

10University of Calabar Teaching Hospital, Calabar;

11Federal Medical Centre, Owo;

12Usmanu Danfodiyo University Teaching Hospital, Sokoto;

13Lagos University Teaching Hospital, Lagos;

14University of Uyo Teaching Hospital, Uyo;

15Federal Teaching Hospital, Gombe;

16University of Benin Teaching Hospital, Benin-City;

17Ahmadu Bello University Teaching Hospital, Zaria;

18Nnamdi Azikiwe University Teaching Hospital, Nnewi;

19Irrua Specialist Teaching Hospital, Irrua;

20Ladoke Akintola University of Technology Teaching Hospital, Ogbomoso, Nigeria. *Correspondence to: keniregbu@yahoo.co.uk

Abstract:
Background: Antimicrobial resistance (AMR) is a major clinical challenge globally. It is mainly a consequence of inappropriate prescribing and use of antibiotics. Antimicrobial stewardship (AMS) ensures that antibiotics are prescribed and used appropriately. This study assessed AMS practice in selected Nigerian hospitals. Continue reading “Antimicrobial Stewardship Implementation in Nigerian Hospitals: Gaps and Challenges”

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In-vitro antimicrobial susceptibility pattern of Staphylococcus aureus isolates in Umuahia, Abia state, Nigeria

EO Ekundayo, RN Ndubuisi

 

Abstract

The antimicrobial susceptibility pattern of Staphylococcusaureus in Umuahia was investigated in this study.A total of 113 strains of S. aureusconsisting of 30 isolates from clinical specimens obtained from 10 medical Laboratories and 83 isolates from nasal swabs of University students in Umuahia, were tested against 10 antimicrobial agents using the disc agar diffusion method. Resistance to penicillin, ampicillin, cloxacillin and tetracycline was 100% among strains isolated from clinical specimens. The clinical isolates also exhibited high rates of resistance to chloramphenicol (97%) and erythromycin (97%). Seven (23%) of these isolates were sensitive to Gentamicin and 6 (20%) to Streptomycin. Likewise, all the 83(100%) and 82 (98.8%)were resistant to penicillin and cloxacillin, respectively.Isolates from nasal passages appeared to be less resistant to chloramphenicol (54.2%), gentamicin (43.4), streptomycin (31.3%) and tetracycline (51.8%). Ampicillin did not produce any zone of inhibition against 29 (96.7%) isolates from clinical specimens and only slightly inhibited one with zone of inhibition of 8mm. Nineteen of the isolates manifested low to high level of resistance to chloramphenicol with mean zone of inhibition ranging from 15. 8± 0.7 mm to 9.8± 2.0 mm. All the isolates were completely resistant to penicillin and cloxacillin with no zone of inhibition at all. In the case of gentamicin, 5 (16.7%) had intermediate susceptibility (mean zone of inhibition 14±0 mm), 12(40%) had mean inhibition zone of 9.6±2.9 mm and 6(20%) were not inhibited. This study shows that S. aureus strains isolated from clinical specimens and healthy students in Umuahia are highly resistant to common antibiotics. This may not be unconnected with indiscriminate use of antibiotics and calls for more control and rational use of antibiotics to minimize the rate of development of resistance to other antibiotics.

Key words: Staphylococcus aureus, antimicrobial resistance, disc agar diffusion, antibiotic susceptibility

French Abstract

Le profil de sensibilité antimicrobienne de Staphylococcus aureus à Umuahia a été recherché dans cette étude. Au total, 113 souches de S. aureus composé de 30 souches provenant d’échantillons cliniques obtenus à partir de 10 laboratoires médicaux et 83 souches d’écouvillons nasaux des étudiants universitaires à Umuahia, ont été testées contre 10 agents antimicrobiens par la méthode de diffusion disque sur gélose. La résistance à la pénicilline, l’ampicilline, la cloxacilline et la tétracycline a été de 100% chez les souches isolées d’échantillons cliniques. Les souches cliniques ont également présenté des taux élevés de résistance au chloramphénicol (97%) et à l’érythromycine (97%). Sept (23%) de ces souches étaient sensibles à la gentamicine et 6 (20%) à la streptomycine. De même, tous les 83 (100%) et 82 (98,8%) étaient résistants respectivement à la pénicilline et à la cloxacilline. Les souches de voies nasales semblaient être moins résistantes au chloramphénicol (54,2%), à la gentamicine (43,4), à la streptomycine (31,3%) et à la tétracycline (51,8%). L’ampicilline n’a produit aucune zone d’inhibition contre 29 (96,7%) souches provenant d’échantillons cliniques et seulement légèrement inhibées avec une zone d’inhibition de 8mm. Dix-neuf souches ont manifesté un faible niveau élevé de résistance au chloramphénicol avec une zone d’inhibition moyenne allant de 15. 8 ± 0,7 mm à 9.8± 2,0mm. Toutes les souches étaient complètement résistantes à la pénicilline et à la cloxacilline sans zone d’inhibition. Dans le cas de la gentamicine, 5 (16,7%) souches avaient une sensibilité intermédiaire (zone d’inhibition moyenne de 14 ± 0 mm), 12 (40%) souches ont eu une zone d’inhibition moyenne de 9,6 ± 2,9 mm et 6 (20%) souches ne ont pas été inhibées. Cette étude montre que les souches de S. aureus isolées  à partir d’échantillons cliniques et des étudiants en bonne santé à Umuahia sont très résistantes aux antibiotiques courants. Cela peut ne pas être en rapport avec l’utilisation sans discernement des antibiotiques et des appels pour plus de contrôle et d’utilisation rationnelle des antibiotiques afin de minimiser le taux de développement d’une résistance à d’autres antibiotiques.

Mots clés: Staphylococcus aureus, résistance aux antimicrobiens, disque de diffusion sur gélose, sensibilité aux

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In-vitro antimicrobial susceptibility pattern of Staphylococcus aureus isolates in Umuahia, Abia state, Nigeria