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Swinkels AF, Berendsen BJA, Fischer EAJ, Zomer AL, Wagenaar JA. Extended period of selection for antimicrobial resistance due to recirculation of persistent antimicrobials in broilers. J Antimicrob Chemother 2024; 79:2186-2193. [PMID: 38953288 PMCID: PMC11368422 DOI: 10.1093/jac/dkae213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/31/2024] [Indexed: 07/03/2024] Open
Abstract
OBJECTIVES Antimicrobials can select for antimicrobial-resistant bacteria. After treatment the active compound is excreted through urine and faeces. As some antimicrobials are chemically stable, recirculation of subinhibitory concentrations of antimicrobials may occur due to coprophagic behaviour of animals such as chickens. METHODS The persistence of three antimicrobials over time and their potential effects on antimicrobial resistance were determined in four groups of broilers. Groups were left untreated (control) or were treated with amoxicillin (unstable), doxycycline or enrofloxacin (stable). Antimicrobials were extracted from the faecal samples and were measured by LC-MS/MS. We determined the resistome genotypically using shotgun metagenomics and phenotypically by using Escherichia coli as indicator microorganism. RESULTS Up to 37 days after treatment, doxycycline and enrofloxacin had concentrations in faeces equal to or higher than the minimal selective concentration (MSC), in contrast to the amoxicillin treatment. The amoxicillin treatment showed a significant difference (P ≤ 0.01 and P ≤ 0.0001) in the genotypic resistance only directly after treatment. On the other hand, the doxycycline treatment showed approximately 52% increase in phenotypic resistance and a significant difference (P ≤ 0.05 and P ≤ 0.0001) in genotypic resistance throughout the trial. Furthermore, enrofloxacin treatment resulted in a complete non-WT E. coli population but the quantity of resistance genes was similar to the control group, likely because resistance is mediated by point mutations. CONCLUSIONS Based on our findings, we suggest that persistence of antimicrobials should be taken into consideration in the assessment of priority classification of antimicrobials in livestock.
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Affiliation(s)
- Aram F Swinkels
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Bjorn J A Berendsen
- Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Egil A J Fischer
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Aldert L Zomer
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- WHO Collaborating Centre for Reference and Research on Campylobacter and Antimicrobial Resistance from a One Health Perspective/WOAH Reference Laboratory for Campylobacteriosis, Utrecht, The Netherlands
| | - Jaap A Wagenaar
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- WHO Collaborating Centre for Reference and Research on Campylobacter and Antimicrobial Resistance from a One Health Perspective/WOAH Reference Laboratory for Campylobacteriosis, Utrecht, The Netherlands
- Wageningen Bioveterinary Research, Wageningen University & Research, Lelystad, The Netherlands
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Medina A, Vega Y, Medina J, López RN, Vayas P, Soria J, Velásquez‐Yambay C, Sánchez‐Gavilanes L, Bastidas‐Caldes C, Calero‐Cáceres W. Characterization of antimicrobial resistance profiles in Escherichia coli isolated from captive mammals in Ecuador. Vet Med Sci 2024; 10:e1546. [PMID: 39016692 PMCID: PMC11253296 DOI: 10.1002/vms3.1546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/20/2024] [Accepted: 06/28/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND This study focuses on the AMR profiles in E. coli isolated from captive mammals at EcoZoo San Martín, Baños de Agua Santa, Ecuador, highlighting the role of wildlife as reservoirs of resistant bacteria. AIMS The aim of this research is to investigate the antimicrobial resistance profiles of E. coli strains isolated from various species of captive mammals, emphasizing the potential zoonotic risks and the necessity for integrated AMR management strategies. MATERIALS & METHODS A total of 189 fecal samples were collected from 70 mammals across 27 species. These samples were screened for E. coli, resulting in 90 identified strains. The resistance profiles of these strains to 16 antibiotics, including 10 β-lactams and 6 non-β-lactams, were determined using the disk diffusion method. Additionally, the presence of Extended-Spectrum Beta-Lactamase (ESBL) genes and other resistance genes was analyzed using PCR. RESULTS Significant resistance was observed, with 52.22% of isolates resistant to ampicillin, 42.22% to ceftriaxone and cefuroxime, and 27.78% identified as ESBL-producing E. coli. Multiresistance (resistance to more than three antibiotic groups) was found in 35.56% of isolates. Carnivorous and omnivorous animals, particularly those with prior antibiotic treatments, were more likely to harbor resistant strains. DISCUSSION These findings underscore the role of captive mammals as indicators of environmental AMR. The high prevalence of resistant E. coli in these animals suggests that zoos could be significant reservoirs for the spread of antibiotic-resistant bacteria. The results align with other studies showing that diet and antibiotic treatment history influence resistance profiles. CONCLUSION The study highlights the need for an integrated approach involving veterinary care, habitat management, and public awareness to prevent captive wildlife from becoming reservoirs of antibiotic-resistant bacteria. Improved waste management practices and responsible antibiotic use are crucial to mitigate the risks of AMR in zoo environments and reduce zoonotic threats.
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Affiliation(s)
- Anabell Medina
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Yadira Vega
- Department of Animal WelfareEco Zoológico San MartínBañosEcuador
| | - Jennifer Medina
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Rosa N. López
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Patricio Vayas
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Joyce Soria
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Cristian Velásquez‐Yambay
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Lissette Sánchez‐Gavilanes
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
| | - Carlos Bastidas‐Caldes
- One Health Research Group, BiotecnologíaFacultad de Ingeniería y Ciencias Aplicadas (FICA)Universidad de las Américas (UDLA)QuitoEcuador
| | - William Calero‐Cáceres
- UTA RAM One HealthDepartment of Food and Biotechnology Science and EngineeringUniversidad Técnica de AmbatoAmbatoEcuador
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Jalil A, Masood S, Ain Q, Andleeb S, Dudley EG, Adnan F. High resistance of fluoroquinolone and macrolide reported in avian pathogenic Escherichia coli isolates from the humid subtropical regions of Pakistan. J Glob Antimicrob Resist 2023; 33:5-17. [PMID: 36764657 DOI: 10.1016/j.jgar.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 02/11/2023] Open
Abstract
OBJECTIVES This study aimed to assess the antimicrobial resistance profile, virulence potential, and genetic characterization of avian pathogenic Escherichia coli (APEC) that cause colibacillosis in poultry. METHODS Antibiotic susceptibility testing (AST) was measured via the Kirby-Bauer disc diffusion method against 27 commonly used antibiotics. Phylogrouping, virulence-associated gene detection, and hybrid strain detection via multiplex polymerase chain reaction (PCR) and genetic diversity were analysed via ERIC-PCR fingertyping method. RESULTS AST analysis showed 100% of isolates were multidrug-resistant (MDR) and highest resistance was against penicillin, tetracycline, and macrolide classes of antibiotics. The mcr-1 gene was present in 40% of the isolates, though only 4% of isolates were showing phenotypic resistance. Despite the scarce use of fluoroquinolone, carbapenem, and cephalosporin in the poultry sector, resistance was evident because of the high prevalence of extended-spectrum β-lactamase (ESBL) (53.7%) and other β-lactamases in APEC isolates. β-lactamase genotyping of APEC isolates revealed that 85.7% of isolates contained either blaCTX or blaTEM and around 38% of isolates were complement resistant. Growth in human urine was evident in 67.3% of isolates. Phylogroup B1 (51%) was the most prevalent group followed by phylogroups A (30.6%), D (13.61%), and B2 (4.76%). The most prevalent virulence-associated genes were fimH, iss, and tatT. Results showed that 26 isolates (17.69%) can be termed hybrid strains and APEC/EHEC (enterohemorrhagic E. coli) was the most prevalent hybrid E. coli pathotype. ERIC-PCR fingerprinting genotype analysis clustered APEC isolates in 40 groups (E1-E40). This study provides insights into the antibiotic resistance and virulence profiling of the APEC isolates in Pakistan. CONCLUSIONS The findings of this study provide insights into that the antibiotic resistance and virulence profiling of the APEC isolates in Pakistan. This data can inform future studies designed to better estimate the severity of the colibacillosis in poultry farms.
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Affiliation(s)
- Amna Jalil
- Atta Ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Saleha Masood
- Atta Ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Quratul Ain
- Atta Ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Saadia Andleeb
- Atta Ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Edward G Dudley
- Department of Food Sciences, Pennsylvania State University, University Park, Pennsylvania; Escherichia coli Reference Centre, Pennsylvania State University, University Park, Pennsylvania
| | - Fazal Adnan
- Atta Ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan.
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Shen X, Yin L, Zhang A, Zhao R, Yin D, Wang J, Dai Y, Hou H, Pan X, Hu X, Zhang D, Liu Y. Prevalence and Characterization of Salmonella Isolated from Chickens in Anhui, China. Pathogens 2023; 12:pathogens12030465. [PMID: 36986387 PMCID: PMC10054756 DOI: 10.3390/pathogens12030465] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Salmonella is one of the most important zoonotic pathogens that can cause both acute and chronic illnesses in poultry flocks, and can also be transmitted to humans from infected poultry. The purpose of this study was to investigate the prevalence, antimicrobial resistance, and molecular characteristics of Salmonella isolated from diseased and clinically healthy chickens in Anhui, China. In total, 108 Salmonella isolates (5.66%) were successfully recovered from chicken samples (n = 1908), including pathological tissue (57/408, 13.97%) and cloacal swabs (51/1500, 3.40%), and S. Enteritidis (43.52%), S. Typhimurium (23.15%), and S. Pullorum (10.19%) were the three most prevalent isolates. Salmonella isolates showed high rates of resistance to penicillin (61.11%), tetracyclines (47.22% to tetracycline and 45.37% to doxycycline), and sulfonamides (48.89%), and all isolates were susceptible to imipenem and polymyxin B. In total, 43.52% isolates were multidrug-resistant and had complex antimicrobial resistance patterns. The majority of isolates harbored cat1 (77.78%), blaTEM (61.11%), and blaCMY-2 (63.89%) genes, and the antimicrobial resistance genes in the isolates were significantly positively correlated with their corresponding resistance phenotype. Salmonella isolates carry high rates of virulence genes, with some of these reaching 100% (invA, mgtC, and stn). Fifty-seven isolates (52.78%) were biofilm-producing. The 108 isolates were classified into 12 sequence types (STs), whereby ST11 (43.51%) was the most prevalent, followed by ST19 (20.37%) and ST92 (13.89%). In conclusion, Salmonella infection in chicken flocks is still serious in Anhui Province, and not only causes disease in chickens but might also pose a threat to public health security.
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Affiliation(s)
- Xuehuai Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Lei Yin
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Anyun Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu 610017, China
| | - Ruihong Zhao
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Dongdong Yin
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Jieru Wang
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Yin Dai
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Hongyan Hou
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Xiaocheng Pan
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
- Correspondence: (X.P.); (Y.L.)
| | - Xiaomiao Hu
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Danjun Zhang
- Anhui Province Key Laboratory of Livestock and Poultry Product Safety Engineering, Livestock and Poultry Epidemic Diseases Research Center of Anhui Province, Institute of Animal Husbandry and Veterinary Science, Anhui Academy of Agricultural Science, Hefei 230001, China
| | - Yongjie Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: (X.P.); (Y.L.)
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Jalil A, Gul S, Bhatti MF, Siddiqui MF, Adnan F. High Occurrence of Multidrug-Resistant Escherichia coli Strains in Bovine Fecal Samples from Healthy Cows Serves as Rich Reservoir for AMR Transmission. Antibiotics (Basel) 2022; 12:antibiotics12010037. [PMID: 36671238 PMCID: PMC9855024 DOI: 10.3390/antibiotics12010037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/11/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVES Antibiotics are valuable therapeutics. However, the unwarranted and excessive use of these antimicrobials in food animals and the consequent contamination of the environment have been associated with the emergence and spread of antimicrobial resistance. Continuous surveillance and monitoring of antimicrobial resistance among E. coli isolates is recommended, not only for bovine health but also for public health. This study aims to assess the antimicrobial resistance profile, virulence potential, and genetic characterization of fecal E. coli isolates from healthy cows. METHODOLOGY The in vitro, phenotypic antibiotic resistance of isolates was measured via the Kirby-Bauer disc-diffusion method against twenty-seven antibiotics. The β-lactamase enzymatic activities of the strains were also investigated. For the assessment of virulence potential, fecal E. coli isolates were subjected to several in vitro pathogenicity assays, including biofilm formation ability, blood hemolysis, complement resistance, and growth in human urine. Phylogroup determination and virulence-associated genes were detected via multiplex PCR. RESULTS In vitro antibiotic resistance profiling showed that 186/200 (93%) of the isolates were multidrug-resistant (MDR), with the highest resistance against penicillin, tetracycline, fluoroquinolone, and macrolide classes of antibiotics. Of particular concern was the phenotypic resistance to colistin in 52/200 isolates (26%), though 16% of the total isolates harbored mcr1, the genetic determinant of colistin. Despite the scarce use of fluoroquinolone, cephalosporin, and carbapenem in the agricultural sector, resistance to these classes was evident due to the presence of extended-spectrum β-lactamase (ESBL) in 41% of E. coli isolates. The β-lactamase genotyping of E. coli isolates showed that 47% of isolates harbored either blaCTX or blaTEM. Approximately 32% of isolates were resistant to serum complement, and their growth in human urine was evident in 18% of isolates, indicating a possible infection of these isolates in high nitrogenous condition. Phylogrouping showed that the most prevalent phylogenetic group among fecal E. coli isolates was phylogroup B1 (57%), followed by phylogroups A (33%), D (6%), and B2 (4%). The most prevalent virulence-associated genes in fecal E. coli were fimH, iss and tatT. Results showed that ten isolates (5%) harbored the stx1 gene, the genetic marker of enterohemorrhagic E. coli. This study provides insights into the antibiotic resistance and virulence profiling of the fecal E. coli isolates from healthy cows. These results emphasize the need for imposing regulations on the proper use of antibiotics and growth promoters in food-producing animals.
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Affiliation(s)
- Amna Jalil
- Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Shabana Gul
- Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Muhammad Faraz Bhatti
- Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | | | - Fazal Adnan
- Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
- Correspondence:
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Chen X, Han J, Wang S. Integrated evolutionary analysis reveals the resistance risk to antimicrobial peptides in Staphylococcus aureus. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Does Chlorination Promote Antimicrobial Resistance in Waterborne Pathogens? Mechanistic Insight into Co-Resistance and Its Implication for Public Health. Antibiotics (Basel) 2022; 11:antibiotics11050564. [PMID: 35625208 PMCID: PMC9137585 DOI: 10.3390/antibiotics11050564] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 11/16/2022] Open
Abstract
Chemical agents including chlorine and antibiotics are used extensively to control infectious microorganisms. While antibiotics are mainly used to treat bacterial infections, chlorine is widely used for microbial inactivation in the post-secondary disinfection steps of water treatment. The extensive use of these agents has been acknowledged as a driving force for the expansion of antimicrobial resistance (AMR) and has prompted discourse on their roles in the evolution and proliferation of resistant pathogens in the aquatic milieus. We live in a possible “post-antibiotic” era when resistant microbes spread at startling levels with dire predictions relating to a potential lack of effective therapeutic antibacterial drugs. There have been reports of enhancement of resistance among some waterborne pathogens due to chlorination. In this context, it is pertinent to investigate the various factors and mechanisms underlying the emergence and spread of resistance and the possible association between chlorination and AMR. We, therefore, reflect on the specifics of bacterial resistance development, the mechanisms of intrinsic and acquired resistance with emphasis on their environmental and public health implications, the co-selection for antibiotic resistance due to chlorination, biofilm microbiology, and multidrug efflux activity. In-depth knowledge of the molecular basis of resistance development in bacteria will significantly contribute to the more rational utilization of these biocidal agents and aid in filling identified knowledge gap toward curbing resistance expansion.
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Samy AA, Mansour AS, Khalaf DD, Khairy EA. Development of multidrug-resistant Escherichia coli in some Egyptian veterinary farms. Vet World 2022; 15:488-495. [PMID: 35400950 PMCID: PMC8980374 DOI: 10.14202/vetworld.2022.488-495] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Food of animal origin is considered a major source of foodborne diseases. In this context, multidrug-resistant (MDR) Escherichia coli pose a serious hazard to public health due to the consumption of food contaminated with antibiotics that are used for the treatment of various bacterial infections in farm animals. Therefore, this study aimed to determine the effect of the excessive use of antibiotics on the development of MDR E. coli strains in Egyptian poultry, dairy, and meat farms.
Materials and Methods: A total of 1225 samples were randomly collected from poultry, dairy, and meat products intended for human consumption in different governorates. E. coli were isolated from the collected samples and subjected to biochemical identification and antibiotic sensitivity tests with antibiotics commonly used in human and veterinary medicine. Then, amoxicillin (AML)- and oxytetracycline (OT)-resistant E. coli isolates were subjected to a polymerase chain reaction test to detect the blaTEM and tetA genes, respectively.
Results: E. coli were isolated from 132 out of 350, 148 out of 350, 177 out of 350, and 35 out of 175 poultry, milk, meat, and human samples, respectively. Most of the isolates expressed multidrug resistance, and resistance genes (blaTEM and tetA) were detected in all the tested AML- and OT-resistant E. coli isolates.
Conclusion: Foods of animal origin may represent a source of MDR E. coli, which can be a major threat to public health.
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Affiliation(s)
- A. A. Samy
- Department of Microbiology and Immunology, National Research Center, Dokki, Cairo, Egypt
| | - Asmaa S. Mansour
- Department of Microbiology and Immunology, National Research Center, Dokki, Cairo, Egypt
| | - Doaa D. Khalaf
- Department of Microbiology and Immunology, National Research Center, Dokki, Cairo, Egypt
| | - Eman A. Khairy
- Department of Microbiology and Immunology, National Research Center, Dokki, Cairo, Egypt
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Sobierajski T, Mazińska B, Chajęcka-Wierzchowska W, Śmiałek M, Hryniewicz W. Antimicrobial and Antibiotic Resistance from the Perspective of Polish Veterinary Students: An Inter-University Study. Antibiotics (Basel) 2022; 11:antibiotics11010115. [PMID: 35052992 PMCID: PMC8772817 DOI: 10.3390/antibiotics11010115] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/07/2022] [Accepted: 01/13/2022] [Indexed: 11/16/2022] Open
Abstract
The phenomenon of antibiotic resistance is a global problem that affects the use of antibiotics by humans and animal husbandry. One of the primary reasons for the growing phenomenon of antibiotic resistance is the over-prescription of antibiotics by doctors in human medicine and the overuse of antibiotics in industrial animal farming. Adequate education of veterinary medical students on the use of antibiotics in animal husbandry may reduce antibiotic resistance. For this reason, a survey was conducted among students at four primary research and didactic centers teaching veterinary medicine in Poland. The survey aimed to find out the knowledge and attitude of students towards the use of antibiotics and antibiotic resistance. The survey was conducted in May/June 2021. Four hundred and sixty-seven students participated in the study. The study positively verified that antibiotics and antibiotic resistance knowledge increase with successive years of veterinary studies/education. For most students (82.2%), antibiotic resistance is a significant problem, but only 58.7% believe it is global, and one in three respondents heard about the One Health approach.
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Affiliation(s)
- Tomasz Sobierajski
- Faculty of Applied Social Sciences and Resocialization, Warsaw University, Krakowskie Przedmieście 26/28, 00-927 Warsaw, Poland
- Correspondence:
| | - Beata Mazińska
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland; (B.M.); (W.H.)
| | - Wioleta Chajęcka-Wierzchowska
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland;
| | - Marcin Śmiałek
- Department of Poultry Diseases, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-719 Olsztyn, Poland;
| | - Waleria Hryniewicz
- Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland; (B.M.); (W.H.)
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Evidence of Another Anthropic Impact on Iguana delicatissima from the Lesser Antilles: The Presence of Antibiotic Resistant Enterobacteria. Antibiotics (Basel) 2021; 10:antibiotics10080885. [PMID: 34438935 PMCID: PMC8388812 DOI: 10.3390/antibiotics10080885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022] Open
Abstract
The improper use of antibiotics by humans may promote the dissemination of resistance in wildlife. The persistence and spread of acquired antibiotic resistance and human-associated bacteria in the environment, while representing a threat to wildlife, can also be exploited as a tool to monitor the extent of human impact, particularly on endangered animal species. Hence, we investigated both the associated enterobacterial species and the presence of acquired resistance traits in the cloacal microbiota of the critically endangered lesser Antillean iguana (Iguana delicatissima), by comparing two separate populations living in similar climatic conditions but exposed to different anthropic pressures. A combination of techniques, including direct plating, DNA sequencing and antimicrobial susceptibility testing allowed us to characterize the dominant enterobacterial populations, the antibiotic resistant strains and their profiles. A higher frequency of Escherichia coli was found in the samples from the more anthropized site, where multi-drug resistant strains were also isolated. These results confirm how human-associated bacteria as well as their antibiotic-resistance determinants may be transferred to wildlife, which, in turn, may act as a reservoir of antibiotic resistance.
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Martínez-Vázquez AV, Vázquez-Villanueva J, Leyva-Zapata LM, Barrios-García H, Rivera G, Bocanegra-García V. Multidrug Resistance of Escherichia coli Strains Isolated From Bovine Feces and Carcasses in Northeast Mexico. Front Vet Sci 2021; 8:643802. [PMID: 33969038 PMCID: PMC8102688 DOI: 10.3389/fvets.2021.643802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 03/02/2021] [Indexed: 11/15/2022] Open
Abstract
In this work, the antimicrobial resistance profile of Escherichia coli strains (n = 248) isolated from bovine feces and carcass samples from Tamaulipas, Mexico, was evaluated. Susceptibility to 12 antibiotics conventionally used in human and veterinary treatments was determined according to Clinical and Laboratory Standards Institute guidelines. Genes encoding resistance to tetracycline (tetA and tetB), streptomycin (strA), aminoglycoside (aadA), and β-lactamase (blaTEM and blaSHV) were investigated by PCR. Also, stx1, stx2, eae, bfp, and hlyA encoding virulence factors were determined. Of the isolates, 85.9% were confirmed as E. coli strains. Among the 213 E. coli isolates tested, 94.8% (202/213) showed resistance for at least one antimicrobial, mainly ampicillin (83.0%; 177/213), cephalothin (76.0%; 162/213), and tetracyclines (69.0%; 147/213). In all the other antibiotics tested, the resistance percentage was below 36%. A multidrug-resistant phenotype was found in 72.7% of the tested strains. The presence of the tet gene (tetA or tetB) was detected in 43.1% of the isolates, the strA gene in 17.3%, and aadA1 in 51.6%. The blaTEM and blaSHV genes were found in 10.3 and 0.4% of the isolates, respectively. stx1 was detected in 4.2% of isolates, stx2 in 7.0, and hlyA in 2.8%. The virulence genes, eae and bfp, were not detected in any strain. These results indicate that Tamaulipas food products of bovine origin can be a source of multiresistant E. coli strains for the environment and exposure for consumers.
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Affiliation(s)
| | - Jose Vázquez-Villanueva
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Ciudad Victoria, Mexico
| | - Luis M Leyva-Zapata
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Ciudad Victoria, Mexico
| | - Hugo Barrios-García
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Ciudad Victoria, Mexico
| | - Gildardo Rivera
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa, Mexico
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12
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Comparison of Phenotypical Antimicrobial Resistance between Clinical and Non-Clinical E. coli Isolates from Broilers, Turkeys and Calves in Four European Countries. Microorganisms 2021; 9:microorganisms9040678. [PMID: 33805983 PMCID: PMC8064350 DOI: 10.3390/microorganisms9040678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022] Open
Abstract
Livestock data on antimicrobial resistance (AMR) are commonly collected from bacterial populations of clinical and non-clinical isolates. In contrast to data on non-clinical isolates from livestock, data on clinical isolates are not harmonized in Europe. The Normalized Resistance Interpretation (NRI) method was applied to overcome the lack of harmonization of laboratory methods and interpretation rules between monitoring systems. Statistical analyses were performed to identify associations between the isolate type (clinical vs. non-clinical) and resistance to four antimicrobials (ampicillin, tetracycline, gentamicin, and nalidixic acid) per animal category in Germany and France. Additional statistical analyses comparing clinical and non-clinical isolates were performed with the available data on the same antimicrobial panel and animal categories from the UK and Norway. Higher resistance prevalence was found in clinical isolates compared to non-clinical isolates from calves to all antimicrobials included in Germany and France. It was also found for gentamicin in broilers from France. In contrast, in broilers and turkeys from Germany and France and in broilers from the UK, a higher resistance level to ampicillin and tetracycline in non-clinical isolates was encountered. This was also found in resistance to gentamicin in isolates from turkeys in Germany. Resistance differed within countries and across years, which was partially in line with differences in antimicrobial use patterns. Differences in AMR between clinical and non-clinical isolates of Escherichia coli are associated with animal category (broiler, calf, and turkey) and specific antimicrobials. The NRI method allowed comparing results of non-harmonized AMR systems and might be useful until international harmonization is achieved.
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Ma F, Xu S, Tang Z, Li Z, Zhang L. Use of antimicrobials in food animals and impact of transmission of antimicrobial resistance on humans. BIOSAFETY AND HEALTH 2021. [DOI: 10.1016/j.bsheal.2020.09.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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14
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Rochegüe T, Haenni M, Cazeau G, Metayer V, Madec JY, Ferry T, Lupo A. An inventory of 44 qPCR assays using hydrolysis probes operating with a unique amplification condition for the detection and quantification of antibiotic resistance genes. Diagn Microbiol Infect Dis 2021; 100:115328. [PMID: 33819858 DOI: 10.1016/j.diagmicrobio.2021.115328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/22/2021] [Accepted: 01/24/2021] [Indexed: 01/28/2023]
Abstract
Early antibiotic resistance determinants (ARDs) detection in humans or animals is crucial to counteract their propagation. The ARDs quantification is fundamental to understand the perturbation caused by disruptors, such as antibiotics, during therapies. Forty-three qPCRs on the most diffused ARDs and integrons among human and animal Enterobacterales, and one on the 16S rDNA for bacteria quantification, were developed. The qPCRs, using hydrolysis probes, operated with a unique amplification condition and were tested analytically and diagnostically performing 435 reactions on five positive and negative controls for each qPCR. Diagnostic sensitivity and specificity were confirmed by PCR and genome sequencing of control isolates, demonstrating 100% performance for all qPCRs. An easy and rapid discrimination method for the epidemiologically relevant blaCTX-Ms is provided. This large, noncommercial qPCRs inventory could serve for precise quantification of ARDs, but also as a rapid screening tool for surveillance purposes, providing the basis for further high-throughput developments.
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Affiliation(s)
- Tony Rochegüe
- ANSES - Université de Lyon, Unité Antibiorésistance et Virulence Bactériennes (AVB), Lyon, France
| | - Marisa Haenni
- ANSES - Université de Lyon, Unité Antibiorésistance et Virulence Bactériennes (AVB), Lyon, France
| | - Géraldine Cazeau
- ANSES - Université de Lyon, Unité Epidémiologie et Appui à la Surveillance (EAS), Lyon, France
| | - Véronique Metayer
- ANSES - Université de Lyon, Unité Antibiorésistance et Virulence Bactériennes (AVB), Lyon, France
| | - Jean-Yves Madec
- ANSES - Université de Lyon, Unité Antibiorésistance et Virulence Bactériennes (AVB), Lyon, France
| | - Tristan Ferry
- Service des maladies infectieuses et tropicales, CHU de Lyon, Hôpital de la Croix-Rousse, Lyon, France; Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
| | - Agnese Lupo
- ANSES - Université de Lyon, Unité Antibiorésistance et Virulence Bactériennes (AVB), Lyon, France.
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15
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Sato W, Sukmawinata E, Uemura R, Kanda T, Kusano K, Kambayashi Y, Sato T, Ishikawa Y, Toya R, Sueyoshi M. Antimicrobial resistance profiles and phylogenetic groups of Escherichia coli isolated from healthy Thoroughbred racehorses in Japan. J Equine Sci 2020; 31:85-91. [PMID: 33376444 PMCID: PMC7750643 DOI: 10.1294/jes.31.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/24/2020] [Indexed: 11/24/2022] Open
Abstract
In this study, we investigated the occurrence of antimicrobial resistance in commensal
Escherichia coli isolated from healthy Thoroughbred (TB) racehorses in Japan. A total of
212 fecal samples were individually collected from TB racehorses from March 2017 to August
2018 at Japan Racing Association training centers. E. coli was isolated by using selective
agar media, deoxycholate-hydrogen sulfide-lactose (DHL) and eosin methylene blue (EMB). A
total of 417 E. coli isolates were examined against 10 antimicrobial agents by using the
broth microdilution method. The 417 E. coli isolates were phylogenetically grouped using a
multiplex polymerase chain reaction. The highest proportion of resistance was observed for
streptomycin (30.9%, 129/417) followed by ampicillin (19.4%, 81/417), trimethoprim (15.8%,
66/417), tetracycline (8.4%, 35/417), chloramphenicol (2.6%, 11/417), kanamycin (1.2%,
5/417), nalidixic acid (0.5%, 2/417), cefazolin (0.2%, 1/417), colistin (0.2%, 1/417), and
gentamycin (0%). Multidrug-resistant (MDR) E. coli was detected in 7.9% (33/417) of
isolates. The proportions of resistance against ampicillin, streptomycin, kanamycin, and
chloramphenicol and of multidrug-resistant phenotypes in E. coli belonging to phylogenetic
group B2 were significantly higher than those of other groups. This study clarified the
distribution of antimicrobial-resistant (AMR) E. coli in Japanese racehorses. A continuous
monitoring program for antimicrobial resistance is required to control the spread of AMR
bacteria in racehorses.
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Affiliation(s)
- Wataru Sato
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Eddy Sukmawinata
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Ryoko Uemura
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan.,Center for Animal Diseases Control, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Takuya Kanda
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Kanichi Kusano
- Miho Training Center, Racehorse Clinic, Japan Racing Association, Ibaraki 300-0400, Japan
| | - Yoshinori Kambayashi
- Miho Training Center, Racehorse Clinic, Japan Racing Association, Ibaraki 300-0400, Japan
| | - Takashi Sato
- Ritto Training Center, Racehorse Clinic, Japan Racing Association, Shiga 520-3005, Japan
| | - Yuhiro Ishikawa
- Ritto Training Center, Racehorse Clinic, Japan Racing Association, Shiga 520-3005, Japan
| | - Ryohei Toya
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Masuo Sueyoshi
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan.,Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
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16
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Han T, Zhang Q, Liu N, Wang J, Li Y, Huang X, Liu J, Wang J, Qu Z, Qi K. Changes in antibiotic resistance of Escherichia coli during the broiler feeding cycle. Poult Sci 2020; 99:6983-6989. [PMID: 33248614 PMCID: PMC7704736 DOI: 10.1016/j.psj.2020.06.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/04/2020] [Indexed: 12/04/2022] Open
Abstract
The purpose of this study was to investigate the drug-resistant phenotypes and genes of Escherichia coli in animal, environmental, and human samples before and after antibiotic use at a large-scale broiler farm to understand the respective effects on E. coli resistance during the broiler feeding cycle. The antibiotic use per broiler house was 143.04 to 183.50 mg/kg, and included tilmicosin, florfenicol, apramycin, and neomycin. All strains isolated on the first day the broilers arrived (T1; day 1) were antibiotic-resistant bacteria. E. coli strains isolated from animal samples were resistant to ampicillin, tetracycline, and sulfamethoxazole (100%), and those isolated from environmental samples were resistant to 5 different drugs (74.07%, 20 of 27). E. coli strains isolated on the last day before the broilers left (T2; day 47) had a higher resistance rate to florfenicol (100%, 36 of 36) than at T1 (P < 0.05). Multidrug resistance increased from T1 (84.21%, 32 of 38) to T2 (97.22%, 35 of 36). Most strains were resistant to 5 classes of antibiotics, and 2 strains were resistant to 6 classes of antibiotics. Among 13 identified drug resistance genes, 11 and 13 were detected at T1 and T2, respectively. NDM-1 was detected in 4 environmental samples and 1 animal sample. In conclusion, the use of antibiotics during breeding increases E. coli resistance to antibacterial drugs. Drug-resistant bacteria in animals and the environment proliferate during the feeding cycle, leading to the widespread distribution of drug resistance genes and an increase in the overall resistance of bacteria.
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Affiliation(s)
- Tianfei Han
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China; Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China.
| | - Qingqing Zhang
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Na Liu
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Juan Wang
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Yuehua Li
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Xiumei Huang
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Junhui Liu
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Junwei Wang
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China
| | - Zhina Qu
- Livestock and Poultry Products Quality & Safety Risk Assessment Laboratory (Qingdao) of Ministry of Agriculture and Rural Affairs, China Animal Health and Epidemiology Center, Qingdao, Shandong, China.
| | - Kezong Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, China
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