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Siddique A, Azim S, Ali A, Andleeb S, Ahsan A, Imran M, Rahman A. Antimicrobial Resistance Profiling of Biofilm Forming Non Typhoidal Salmonella enterica Isolates from Poultry and Its Associated Food Products from Pakistan. Antibiotics (Basel) 2021; 10:antibiotics10070785. [PMID: 34203245 PMCID: PMC8300803 DOI: 10.3390/antibiotics10070785] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022] Open
Abstract
Salmonellosis caused by non-typhoidal Salmonella enterica from poultry products is a major public health concern worldwide. This study aimed at estimating the pathogenicity and antimicrobial resistance in S. enterica isolates obtained from poultry birds and their food products from different areas of Pakistan. In total, 95/370 (25.67%) samples from poultry droppings, organs, eggs, and meat were positive for Salmonella. The isolates were further identified through multiplex PCR (mPCR) as Salmonella Typhimurium 14 (14.7%), Salmonella Enteritidis 12 (12.6%), and other Salmonella spp. 69 (72.6%). The phenotypic virulence properties of 95 Salmonella isolates exhibited swimming and/or swarming motility 95 (100%), DNA degrading activity 93 (97.8%), hemolytic activity 92 (96.8%), lipase activity 87 (91.6%), and protease activity 86 (90.5%). The sopE virulence gene known for conferring zoonotic potential was detected in S. Typhimurium (92.8%), S. Enteritidis (100%), and other Salmonella spp. (69.5%). The isolates were further tested against 23 antibiotics (from 10 different antimicrobial groups) and were found resistant against fifteen to twenty-one antibiotics. All isolates showed multiple drug resistance and were found to exhibit a high multiple antibiotic-resistant (MAR) index of 0.62 to 0.91. The strong biofilm formation at 37 °C reflected their potential adherence to intestinal surfaces. There was a significant correlation between antimicrobial resistance and the biofilm formation potential of isolates. The resistance determinant genes found among the isolated strains were blaTEM-1 (59.3%), blaOxA-1 (18%), blaPSE-1 (9.5%), blaCMY-2 (43%), and ampC (8.3%). The detection of zoonotic potential MDR Salmonella in poultry and its associated food products carrying cephalosporin and quinolone resistance genes presents a major threat to the poultry industry and public health.
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Affiliation(s)
- Abubakar Siddique
- Atta Ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan; (A.S.); (S.A.); (A.A.); (S.A.)
| | - Sara Azim
- Atta Ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan; (A.S.); (S.A.); (A.A.); (S.A.)
| | - Amjad Ali
- Atta Ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan; (A.S.); (S.A.); (A.A.); (S.A.)
| | - Saadia Andleeb
- Atta Ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan; (A.S.); (S.A.); (A.A.); (S.A.)
| | - Aitezaz Ahsan
- Animal Health Program, Animal Sciences Institute, National Agriculture Research Centre, Park Road, Islamabad 44000, Pakistan;
| | - Muhammad Imran
- Department of Biosciences, Faculty of Sciences, COMSATS University Islamabad, Park Road, Islamabad 44000, Pakistan;
| | - Abdur Rahman
- Atta Ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan; (A.S.); (S.A.); (A.A.); (S.A.)
- Correspondence:
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Ajayi A, Smith SI, Kalpy JC, Bode-Sojobi IO, René YK, Adeleye AI. Molecular diversity and antibiotic resistance gene profile of Salmonella enterica serovars isolated from humans and food animals in Lagos, Nigeria. Acta Microbiol Immunol Hung 2019; 66:509-527. [PMID: 31658835 DOI: 10.1556/030.66.2019.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Outbreaks of Salmonellosis remain a major public health problem globally. This study determined the diversity and antibiotic resistance gene profile of Salmonella enterica serovars isolated from humans and food animals. Using standard methods, Salmonella spp. were isolated from fecal samples, profiled for antimicrobial susceptibility and resistance genes. Seventy-one Salmonella isolates were recovered from both humans and food animals comprising cattle, sheep, and chicken. Forty-four serovars were identified, with dominant Salmonella Budapest (31.8%). Rare serovars were present in chicken (S. Alfort, S. Wichita, S. Linton, S. Ealing, and S. Ebrie) and humans (S. Mowanjum, S. Huettwillen, S. Limete, and S. Chagoua). Sixty-eight percent of isolates were sensitive to all test antibiotics, while the highest rate of resistance was to nalidixic acid (16.9%; n = 12), followed by ciprofloxacin (11.3%; n = 8) and tetracycline (9.9%; n = 8). Five isolates (7%) were multidrug-resistant and antimicrobial resistance genes coding resistance to tetracycline (tetA), beta-lactam (blaTEM), and quinolone/fluoroquinolone (qnrB and qnrS) were detected. Evolutionary analysis of gyrA gene sequences of human and food animal Salmonella isolates revealed variations but are evolutionarily interconnected. Isolates were grouped into four clades with S. Budapest isolate from cattle clustering with S. Budapest isolated from chicken, whereas S. Essen isolated from sheep and chicken was grouped into a clade. Diverse S. enterica serovars with high antibiotic resistance profile are ubiquitous in food animals; hence, there is a need for surveillance and prudent use of antibiotics in human and veterinary medicine.
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Affiliation(s)
- Abraham Ajayi
- 1 Department of Microbiology, University of Lagos, Akoka, Nigeria
| | - Stella Ifeanyi Smith
- 2 Molecular Biology and Biotechnology Department, Nigerian Institute of Medical Research, Lagos, Nigeria
| | - Julien Coulibaly Kalpy
- 3 Laboratoire de Bactériologie et Virologie Institut Pasteur de Côte d’Ivoire, Centre Nationale de Référence de Salmonella, Paris, France
| | | | - Yao Kouamé René
- 3 Laboratoire de Bactériologie et Virologie Institut Pasteur de Côte d’Ivoire, Centre Nationale de Référence de Salmonella, Paris, France
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Beshiru A, Igbinosa IH, Igbinosa EO. Prevalence of Antimicrobial Resistance and Virulence Gene Elements of Salmonella Serovars From Ready-to-Eat (RTE) Shrimps. Front Microbiol 2019; 10:1613. [PMID: 31354693 PMCID: PMC6637730 DOI: 10.3389/fmicb.2019.01613] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 06/28/2019] [Indexed: 01/02/2023] Open
Abstract
Gastrointestinal illnesses continue to be a global public health risk. Exposure to foodborne Salmonella directly or indirectly through consumption of ready-to-eat seafood can be an important route of infection to humans. This study was designed to estimate the population cell density, prevalence, virulence gene signatures, and antibiotic resistance of Salmonella serovars from ready-to-eat shrimps. Ready-to-eat (RTE) shrimp samples were obtained from different open markets in Delta and Edo States, Nigeria from November 2016 to October 2017. We employed classical and polymerase chain reaction (PCR) approaches. The mean Salmonella species enumerated from the RTE shrimps ranged from -0.301 to 5.434 log10 cfu/g with 210/1440 (14.58%) of the RTE shrimp samples harbored Salmonella species. After biochemical and PCR approach, the identified isolates were Salmonella Enteritidis 11(24.4%), Salmonella Typhimurium 14 (31.1%) and other Salmonella spp. 20 (44.4%). All Salmonella species recovered were resistant to penicillin and erythromycin with 100% sensitivity to cefotaxime, cephalothin, colistin, and polymyxin B. Findings on the multidrug-resistant (MDR) profile showed that a total of 9/14 (64.3%) of Salmonella Enteritidis were resistant to 5 antibiotics which belongs to 3 different groups of antimicrobials with a multiple antibiotic-resistant (MAR) index of 0.21; while 3/11 (27.3%) of Salmonella Typhimurium were resistant to 11 antibiotics which belongs to 7 different groups of antimicrobials with a MAR index of 0.46. Virulence genes (spiA, sipB, invA, sif A, fljB, and sefA) and resistance genes (class 1 and II integrase, sul2, catB3, flor, tmp, bla TEM, strB, dfr1, and tetC) were also detected in some of the Salmonella species with variable percentage. This study indicates that ready-to-eat shrimps are probable reservoirs harboring Salmonella strains. The identified Salmonella isolates which exhibited virulence determinants and antibiotic-resistant coupled with high MAR index constitute a consumer health risk to the communities.
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Affiliation(s)
- Abeni Beshiru
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Isoken H Igbinosa
- Department of Environmental Management and Toxicology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Etinosa O Igbinosa
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria.,Sustainable Development Office, University of Benin, Benin City, Nigeria
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Hassena AB, Siala M, Guermazi S, Zormati S, Gdoura R, Sellami H. Occurrence and Phenotypic and Molecular Characterization of Antimicrobial Resistance of Salmonella Isolates from Food in Tunisia. J Food Prot 2019; 82:1166-1175. [PMID: 31233356 DOI: 10.4315/0362-028x.jfp-18-607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
HIGHLIGHTS Multidrug-resistant Salmonella isolates have been recovered from food in Tunisia. Salmonella isolates from food are resistant to fluoroquinolones and cephalosporins. Surveillance of the antimicrobial susceptibility of foodborne bacteria is needed in Tunisia.
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Affiliation(s)
- Amal Ben Hassena
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Mariam Siala
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Sonda Guermazi
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Sonia Zormati
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia.,2 Centre Régional de Recherches Vétérinaires de Sfax, Sfax, Tunisia
| | - Radhouane Gdoura
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Hanen Sellami
- 1 Laboratoire de recherche Toxicologie Microbiologie Environnementale et Santé (LR17ES06), Département des Sciences de la vie, Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia.,3 Laboratoire de Traitement et de Valorisation des Rejets Hydriques (LTVRH), Water Researches and Technologies Center (CERTE), University of Carthage, Tourist Road Soliman, BP 273-8020, Nabeul 8000, Tunisia
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Prevalence of Antimicrobial Resistant and Virulent Salmonella spp. in Treated Effluent and Receiving Aquatic Milieu of Wastewater Treatment Plants in Durban, South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:9692-713. [PMID: 26295245 PMCID: PMC4555307 DOI: 10.3390/ijerph120809692] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/17/2015] [Accepted: 08/12/2015] [Indexed: 12/29/2022]
Abstract
In this study, we evaluated the impact of treated wastewater effluent from two wastewater treatment plants on the physicochemical parameters and Salmonella spp. load of receiving rivers. Presumptive Salmonella spp. were obtained at all sampled points including the discharge points, with counts ranging from 0 to 4.14 log cfu/mL at both plants. Turbidity, chemical and biological oxygen demand were found to be high and mostly above the required limit for treated wastewater discharge. However, recorded nitrate and phosphate values were very low. Of the 200 confirmed Salmonella spp. isolates recovered from the treated effluent and receiving surface waters, 93% harbored the spiC gene, 84% harbored the misL gene, and 87.5% harbored the orfL gene while 87% harbored the pipD gene. The antibiotic resistance profile revealed that the isolates were resistant to sulfamethoxazole, nalidixic acid and streptomycin, but susceptible to quinolones and third generation β-lactams. These results indicate that in South Africa treated effluents are still a major source of contamination of rivers with pathogens such as Salmonella. Appropriate steps by the regulatory authorities and workers at the treatment plants are needed to enforce stipulated guidelines in order to prevent pollution of surface water resources due to the discharge of poorly treated effluents.
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Ben Hassena A, Barkallah M, Fendri I, Grosset N, Ben Neila I, Gautier M, Gdoura R. Real time PCR gene profiling and detection of Salmonella using a novel target: The siiA gene. J Microbiol Methods 2014; 109:9-15. [PMID: 25486551 DOI: 10.1016/j.mimet.2014.11.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 01/07/2023]
Abstract
The objective of this study was to develop and evaluate a SYBR Green real time PCR method for the specific detection of Salmonella spp using a novel target, the siiA gene. Primer specificity testing was done on a panel of 76 Salmonella strains and 32 non-Salmonella strains. The primers directed against the siiA gene amplified all Salmonella strains tested, while non-Salmonella strains were not amplified. The melting temperatures of the 107 bp amplicons were consistently specific as they gave melting peaks around 75.5°C. The precision of the assay, based on intra and inter-run variations, was shown to be widely acceptable. In the second part of this study, 45 Salmonella strains were screened for the presence of 6 virulence-associated genes (sopB, cat2, safC, sefB and SC1248) located in several Salmonella Pathogenicity Islands (SPIs) and the spvC gene from the Salmonella virulence plasmid. The prevalence of these genes ranged from 51% to 100%. Variable virulence gene profiles were obtained even within the same serotype.
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Affiliation(s)
- Amal Ben Hassena
- Unité de recherche Toxicologie-Microbiologie Environnementale et Santé (UR11ES70), Faculté des Sciences de Sfax, Route de la Soukra km 3.5, B.P. n° 1171-3000 Sfax, Université de Sfax, Sfax, Tunisie
| | - Mohamed Barkallah
- Unité de recherche Toxicologie-Microbiologie Environnementale et Santé (UR11ES70), Faculté des Sciences de Sfax, Route de la Soukra km 3.5, B.P. n° 1171-3000 Sfax, Université de Sfax, Sfax, Tunisie
| | - Imen Fendri
- Unité de recherche Toxicologie-Microbiologie Environnementale et Santé (UR11ES70), Faculté des Sciences de Sfax, Route de la Soukra km 3.5, B.P. n° 1171-3000 Sfax, Université de Sfax, Sfax, Tunisie
| | - Noel Grosset
- Laboratoire de Microbiologie, Département agroalimentaire Agrocampus Ouest, Rennes, France
| | | | - Michel Gautier
- Laboratoire de Microbiologie, Département agroalimentaire Agrocampus Ouest, Rennes, France
| | - Radhouane Gdoura
- Unité de recherche Toxicologie-Microbiologie Environnementale et Santé (UR11ES70), Faculté des Sciences de Sfax, Route de la Soukra km 3.5, B.P. n° 1171-3000 Sfax, Université de Sfax, Sfax, Tunisie
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