Prevalence and antimicrobial resistance of non-typhoidal Salmonella serotypes isolated from laying hens and broiler chicken farms in N’Djamena, Chad

Tabo, Djim-adjim; Diguimbaye, Colette; Granier, Sophie A.; Moury, Frédérique; Brisabois, Anne; Elgroud, Rachid; Millemann, Yves

doi:10.1016/j.vetmic.2013.05.010

Cited by 43 publications

(43 citation statements)

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“…Ces résistances particulièrement importantes avec la Colistine Sulfate (85%), la Tobramycine (25%), l'Amoxicilline+Acide clavulanique (15%), et la Kanamycine, l'Amikacine et le Sulfaméthoxazole-Triméthoprime (12,5%) pour Salmonella et avec la Colistine Sulfate (100%), le Sulfaméthoxazole-Triméthoprime (20,80%), l'Oxytétracycline (87,69%) et l'Amoxicilline+Acide clavulanique (35,38%) pour E. coli sont en accord avec ceux rapportés dans d'autres études en Algérie (Elgroud et al, 2009), en France (Sanders et al, 2002) et en Ethiopie (Tibaijuka et al, 2002), mais restent très largement au-dessus des résultats d'une étude antérieure menée au Tchad (Tabo et al, 2013) ; Ce qui atteste de l'évolution considérable de l'antibiorésistance dans le temps au Tchad.…”

Section: Discussionunclassified

“…Ces résultats inquiétants contrastent avec les taux de résistance relativement bas obtenus ces dernières années (Veilleux et Dubreuil, 2006;Tabo et al, 2013). Ceci pourrait s'expliquer par son utilisation accrue en pratique en tant que facteur de croissance dans l'alimentation des animaux (Chauvin, 2009).…”

Section: Discussionunclassified

“…En ce qui concerne les sérotypes, toutes les souches (100%) des sérovars Infantis, Limete, Gallinarum, Choleraesus et Paratyphi A se sont révélées multi résistantes, suivies par Derby (75%), Anatum (66,6%), Idikan (62,5%) et Mbandaka (60%), résultats très différents de ceux obtenus à N'Djaména par Tabo et al (2013).…”

Section: Discussionunclassified

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Utilisation des antibiotiques et profil de résistance des souches de Salmonella spp. et Escherichia coli isolées des exploitations avicoles des villes de N’Djaména et Doba au Tchad

Alain¹,

Ndoutamia²,

Ngandolo³

et al. 2017

Int. J. Bio. Chem. Sci

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REMERCIEMENTS Les auteurs tiennent à remercier sincèrement la Commission Nationale chargée d'attribution des bourses et d'équipements des laboratoires de recherche sur le fonds formation des formateurs (CONFOFOR)suite au support financier apporter pour la réalisation de ce travail. RESUME L'émergence et le développement croissant de l'antibiorésistance bactérienne constitue un problème mondial. Ce travail vise à évaluer l'utilisation des antibiotiques par les fermiers et à déterminer le profil de résistance des souches de Salmonella spp. et E. coli isolées des élevages aviaires des villes de N'Djamena et Doba au Tchad. Des enquêtes ont au préalable été menées, pour apprécier les connaissances des fermiers sur les antibiotiques utilisés. Ensuite, la sensibilité des souches bactériennes isolées aux antibiotiques a été déterminée par la méthode standard de diffusion sur milieu gélosé Mueller-Hinton. Les résultats ont montré que 61,5% des fermiers utilisaient au moins un antibiotique pour l'élevage avec des connaissances limitées sur la molécule. Des 105 isolats analysés, 90% de Salmonella spp. et 100% de E. coli étaient résistants à 15 des 18 antibiotiques utilisés, soit un taux de résistance de 96,19%. Les taux de résistance les plus importantes de Salmonella spp. ont été observées avec la Colistine Sulfate (36,56%) et la Tobramycine (10,75%). Pour E. coli ces taux ont été observés avec la Colistine Sulfate (23,72%), le Sulfaméthoxazole-Triméthoprime (20,80%) et l'Oxytétracycline (16,78%). Contrairement aux souches de E. coli qui ont présenté des taux de résistance de 5,47% aux quinolones, les souches de Salmonelles en sont restées largement sensibles (1,07%). Les phénotypes diversifiés de résistance et les taux de résistance hautement significatifs (p<0,001) observés à N'Djaména et Doba incitent à une surveillance accrue de l'utilisation des antibiotiques en filière avicole au Tchad. © 2017 International Formulae Group. All rights reserved.Mots clés: Salmonella, E. coli, sérotype, antibiotique, résistance, exploitations avicoles.A. BODERING et al. / Int. J. Biol. Chem. Sci. 11(4): 1669-1684, 2017 1670 Use of antibiotics and resistance profile of isolated Salmonella spp. and Escherichia coli strains from poultry exploitations in cities of N'Djamena and Doba in Chad ABSTRACT Emergence and increasing evolution of the bacterial antibioresistance constitutes a worldwide problem. The aim of this work was to evaluate the use of antibiotics by farmers and determine the resistance profile of isolated Salmonella spp. and E. coli strains from poultry exploitations in cities of N'Djamena and Doba in Chad. Formal investigations were carried out so as to assess farmers' knowledge about the antibiotic used. The sensitivity of isolated Salmonella spp. and E. coli to antibiotic was then determined using Mueller-Hinton standard agar diffusion method. Results indicate that 61.50% of farmers have limited knowledge on the use of at least one antibiotic in their farms. Out of 105 isolates, 90% of Salmonella spp. and 100% of E. coli ...

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Section: Discussionunclassified

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Utilisation des antibiotiques et profil de résistance des souches de Salmonella spp. et Escherichia coli isolées des exploitations avicoles des villes de N’Djaména et Doba au Tchad

Alain¹,

Ndoutamia²,

Ngandolo³

et al. 2017

Int. J. Bio. Chem. Sci

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“…In the United States alone, more than 300,000 hospitalizations and 3,000 deaths were estimated to be attributed to foodborne infections in 2011 [1]. Salmonella is a major agent of foodborne illness [1] and contaminated eggs, poultry meat, and by-products are considered the main sources of nontyphoidal salmonellosis [2]. Although 2,610 serovars of Salmonella have been identified [3,4], the majority of human infections are caused by a limited number of serovars.…”

Section: Introductionmentioning

confidence: 99%

Clonal relatedness and resistance patterns of Salmonella Corvallis from poultry carcasses in a Brazilian slaughterhouse

Yamatogi

Oliveira

Camargo

et al. 2015

J Infect Dev Ctries

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Introduction: Salmonella is a major cause of foodborne disease, and poultry products are important contributors to the transmission of this zoonotic pathogen. Although considered to be rare in most countries, Salmonella Corvallis has been reported in specific geographic areas isolated from both human and non-human sources. The aim of this study was to report the occurrence, the antimicrobial resistance profiles including the extended-spectrum beta-lactamase (ESBL) production, and the clonal relatedness of S. Corvallis strains. Methodology: A total of 132 fragments of poultry carcasses from a slaughterhouse in São Paulo State, Brazil, were collected at different stages of the manufacturing process (post-bleeding, post-plucking, and post-chilling) and analyzed for the presence of Salmonella. Antimicrobial resistance was determined by disc diffusion method and Etest. Clonal relatedness was determined by pulsed-field gel electrophoresis (PFGE). Results: Among the 272 Salmonella strains recovered, fourteen were S. Corvallis. Ten (71.4%) showed ESBL production and resistance to at least three antimicrobial agents. Nalidixic acid resistance and reduced ciprofloxacin susceptibility was verified in four (28.6%) strains. PFGE analyses showed that all the S. Corvallis strains belonged to the same pulsotype. Conclusion: This study identified genetically related S. Corvallis strains exhibiting ESBL production and reduced susceptibility to quinolone. The results suggest the need to improve the sanitary conditions in the slaughterhouse. Moreover, from a public health perspective, continuous surveillance on Salmonella is needed to control the dissemination of this important zoonotic pathogen and its resistance determinants.

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“…In addition to the recovery of Salmonella isolates from several livestock species, including laying birds and their environments (1,35), there are reports of increased resistance to antimicrobial agents among isolates (7,12,20). Salmonella isolates from the shells and contents of table eggs have been reported to exhibit resistance to antimicro bial agents (10,16).…”

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Resistance to Antimicrobial Agents among Salmonella Isolates Recovered from Layer Farms and Eggs in the Caribbean Region

Adesiyun

Webb

Musai

et al. 2014

Journal of Food Protection

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This investigation determined the frequency of resistance of 84 isolates of Salmonella comprising 14 serotypes recovered from layer farms in three Caribbean countries (Trinidad and Tobago, Grenada, and St. Lucia) to eight antimicrobial agents, using the disc diffusion method. Resistance among isolates of Salmonella was related to the country of recovery, type of sample, size of layer farms, and isolate serotype. Overall, all (100.0%) of the isolates exhibited resistance to one or more of seven antimicrobial agents tested, and all were susceptible to chloramphenicol. The resistance detected ranged from 11.9% to sulphamethoxazole-trimethoprim (SXT) to 100.0% to erythromycin. The difference was, however, not statistically significant (P = 0.23). Across countries, for types of samples that yielded Salmonella, significant differences in frequency of resistance were detected only to SXT (P = 0.002) in Trinidad and Tobago and to gentamycin (P = 0.027) in St. Lucia. For the three countries, the frequency of resistance to antimicrobial agents was significantly different for ampicillin (P = 0.001) and SXT (P = 0.032). A total of 83 (98.8%) of the 84 isolates exhibited 39 multidrug resistance patterns. Farm size significantly (P = 0.032) affected the frequency of resistance to kanamycin across the countries. Overall, among the 14 serotypes of Salmonella tested, significant (P < 0.05) differences in frequency of resistance were detected to kanamycin, ampicillin, and SXT. Results suggest that the relatively high frequency of resistance to six of the antimicrobial agents (erythromycin, streptomycin, gentamycin, kanamycin, ampicillin, and tetracycline) tested and the multidrug resistance detected may pose prophylactic and therapeutic concerns for chicken layer farms in the three countries studied.

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Prevalence and antimicrobial resistance of non-typhoidal Salmonella serotypes isolated from laying hens and broiler chicken farms in N’Djamena, Chad

Cited by 43 publications

References 17 publications

Utilisation des antibiotiques et profil de résistance des souches de <i>Salmonella</i> spp. et <i>Escherichia coli</i> isolées des exploitations avicoles des villes de N’Djaména et Doba au Tchad

Utilisation des antibiotiques et profil de résistance des souches de <i>Salmonella</i> spp. et <i>Escherichia coli</i> isolées des exploitations avicoles des villes de N’Djaména et Doba au Tchad

Clonal relatedness and resistance patterns of Salmonella Corvallis from poultry carcasses in a Brazilian slaughterhouse

Resistance to Antimicrobial Agents among Salmonella Isolates Recovered from Layer Farms and Eggs in the Caribbean Region

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