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My TT, Thien LV, Manh VD, My BTP, Lan DTM, Binh DX, Duc VM. Antimicrobial resistance and molecular characterization of Escherichia coli isolated from bovine mastitis samples in Nghe An province, Vietnam. Vet World 2023; 16:743-751. [PMID: 37235152 PMCID: PMC10206968 DOI: 10.14202/vetworld.2023.743-751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/06/2023] [Indexed: 05/28/2023] Open
Abstract
Background and Aim Vietnam's dairy sector is in its early phase of large-scale farming development. Therefore, mastitis in cows is always a concern to farm owners. This study aimed to determine the antimicrobial susceptibility, resistance, and virulence-related genes of Escherichia coli isolated from bovine mastitis in Nghe An province of Vietnam. Materials and Methods Fifty E. coli strains were isolated from the clinical cases and subjected to this study. All isolates were tested for antimicrobial susceptibility by the disk-diffusion method, as described by the Clinical and Laboratory Standards Institute. Antimicrobial and virulence genes were confirmed by polymerase chain reaction with specific primers. Results All isolates were resistant to lincomycin and sulfamethoxazole and sensitive to gentamicin, while other antimicrobials showed resistance from 2% to 90%. Multidrug resistance was confirmed in 46% of isolates, and none of them were identified as extended-spectrum beta-lactamase producers. From fifty strains tested for antimicrobial and virulence genes, six isolates harbored tetA, 6 tetB, 13 sul1, 15 sul2, 2 Intimin (eae), 1 iutA, and 3 stx2. Conclusion Antimicrobial and multidrug resistances are the main virulence factors of E. coli isolated from bovine mastitis in Vietnam. The virulence genes encoding adhesion, siderophore, Shiga-toxin-producing, and antimicrobials resistant were first reported in Vietnam with low prevalence and contributed to the pathogenesis.
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Affiliation(s)
- Tran Trung My
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
- Department of Quality Assurance, TH Dairy Institute, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Le Van Thien
- Department of Quality Assurance, TH Dairy Institute, Nghia Son, Nghia Dan, Nghe An, Vietnam
- Department of Veterinary Medicine, The Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Vu Duy Manh
- TH Milk Food Joint Stock Company, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Bui Thi Phuong My
- TH Milk Food Joint Stock Company, Nghia Son, Nghia Dan, Nghe An, Vietnam
| | - Dang Thi Mai Lan
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
| | - Dang Xuan Binh
- Department of Animal Science and Veterinary Medicine, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen University, Quyet Thang, Thai Nguyen City, Vietnam
| | - Vu Minh Duc
- Department of Agro-forestry Technology, College of Economics and Technology, Thai Nguyen University, Thinh Dan, Thai Nguyen City, Vietnam
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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Duc VM, Kakiuchi R, Muneyasu H, Toyofuku H, Obi T, Chuma T. Decreasing trend of β-Lactam Resistance in Salmonella Isolates from Broiler Chickens due to the Cessation of Ceftiofur in ovo Administration. Vet Anim Sci 2022; 16:100248. [PMID: 35434417 PMCID: PMC9006760 DOI: 10.1016/j.vas.2022.100248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The most prevalence of S. enterica isolated in 2017 and 2018 were S. Manhattan and S. Schwarzengrund. S. enterica prevalence showed a declining trend over an extended period. β-lactam resistance was absent in the predominant serovars in 2018.
Ceftiofur, a third-generation cephalosporin antimicrobial, was used in Japanese hatcheries for many years before 2012. We continue to study Salmonella in broilers and their antimicrobial resistance. The current study aimed to express how the cessation of ceftiofur affects the antimicrobial resistance of Salmonella isolated from broiler chickens in Kagoshima Prefecture, Japan in 2017 and 2018. A total of 274 Salmonella isolates were recovered from 1535 cecal content samples obtained from 96 broiler flocks over years 2017 and 2018. Among the S. enterica isolates, the predominant serovars were S. Manhattan (128/274, 46.7%), S. Schwarzengrund (120/274, 43.8%), and S. Infantis (26/274, 9.5%). The isolates showed a high proportion of antimicrobial resistance for oxytetracycline, sulfamethoxazole, and streptomycin. However, the β-lactam resistance rates were significantly decreased (p < 0.01) in 2017, while no β-lactam resistant isolates detected in 2018. The highlight of this study was the complete disappearance of β-lactam resistance in Salmonella isolates from broiler chicken in Kagoshima, Japan.
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Duc VM, Kakiuchi R, Obi T, Asakura H, Chuma T. The incidence of Campylobacter contamination levels through chicken-sashimi processing steps in a small-scale poultry processing plant applying the external stripping method. J Vet Med Sci 2022; 84:414-419. [PMID: 35082194 PMCID: PMC8983290 DOI: 10.1292/jvms.21-0486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study aimed to analyze the incidence of Campylobacter in a small-scale chicken meat processing plant producing "chicken-sashimi", and determine the effectiveness of surface burning as a treatmentduring processing. The most probable number (MPN) method was used to analyze the load of Campylobacter in 48 samples from four different processing steps (de-feathering, chilling, surface burning, and final-products; 12 samples each). We found the highest load of isolated bacteria in chicken skin after de-feathering. Campylobacter wasn't detectedafter the surface burning step despite a large load of bacteria present in the cecum content. Campylobacter was absent in the final products. Adequate surface burning can avoid Campylobacter contamination of chicken sashimi in the processing plant by applying the external stripping method.
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Affiliation(s)
- Vu Minh Duc
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University.,College of Economic and Technology, Thai Nguyen University
| | - Rina Kakiuchi
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University
| | - Takeshi Obi
- Laboratory of Microbiology, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University
| | | | - Takehisa Chuma
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University
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Thuy NT, Vuong TQ, Duc VM. Effects of glycerol and NCO/OH on rigid polyurethane foam based on bio-polyol of rubber seed oil using water as blowing agent. VJCH 2020. [DOI: 10.1002/vjch.202000008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nuyen Thi Thuy
- Centre for Polymer - Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Vietnam
| | - Trinh Quoc Vuong
- Centre for Polymer - Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Vietnam
| | - Vu Minh Duc
- Centre for Polymer - Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Vietnam
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Duc VM, Shin J, Nagamatsu Y, Fuhiwara A, Toyofuku H, Obi T, Chuma T. Increased Salmonella Schwarzengrund prevalence and antimicrobial susceptibility of Salmonella enterica isolated from broiler chickens in Kagoshima Prefecture in Japan between 2013 and 2016. J Vet Med Sci 2020; 82:585-589. [PMID: 32213751 PMCID: PMC7273603 DOI: 10.1292/jvms.20-0096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This study aimed to analyze the Salmonella serovars, measure the minimum inhibitory concentration of antimicrobials, and examine the antimicrobial resistance genes of
Salmonella isolated from 192 broiler flocks in Kagoshima Prefecture in Japan, from 2013 to 2016. We found that all Salmonella isolates belonged to three
serovars: Salmonella Manhattan, S. Infantis, and S. Schwarzengrund. Among them, S. Schwarzengrund prevalence has recently
increased annually making the main serovar. Most recovered isolates were highly resistant to streptomycin, sulfamethoxazole, and oxytetracycline. We saw the reduction of third-generation
cephalosporin resistance and identified the reason of increased kanamycin resistance to be the increased number of S. Schwazengrund isolates. Among the kanamycin-resistant
Salmonella isolates, aphA1 constituted the main resistance gene detected.
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Affiliation(s)
- Vu Minh Duc
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.,College of Economic and Technology, Thai Nguyen University, Group 15, Thinh Dan Ward, Thai Nguyen city, Thai Nguyen Province, Vietnam
| | - Jiye Shin
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Yamato Nagamatsu
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Ayaka Fuhiwara
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Hajime Toyofuku
- The United Graduate School of Veterinary Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan
| | - Takeshi Obi
- Laboratory of Microbiology, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Takehisa Chuma
- Laboratory of Veterinary Public Health, Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
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Affiliation(s)
- Nguyen Thi Thuy
- Centre for Polymer-Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Viet Nam
| | - Nguyen Van Trung
- Vicostone Joint Stock Company, Hoa Lac Hi-tech Park, Thach Hoa Commune; Thach That District, Hanoi 10000 Viet Nam
| | - Pham Anh Tuan
- Phenikaa Research & Technology Institute (PRATI) Phenikaa Group; 167 Hoang Ngan, Trung Hoa, Cau Giay, Hanoi 10000 Viet Nam
| | - Vu Minh Duc
- Centre for Polymer-Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Viet Nam
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Affiliation(s)
- Nguyen Thi Thuy
- Centre for Polymer-Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Viet Nam
| | - Bui Xuan Nam
- 75 Rubber One Member Limited Liability Company, Group Z175; Xuan Son Commune, Son Tay Town Hanoi 10000 Viet Nam
| | - Vu Minh Duc
- Centre for Polymer-Composite and Paper Technology, Hanoi University of Science and Technology; 1 Dai Co Viet, Hai Ba Ba Trung Hanoi 10000 Viet Nam
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Duc VM, Nakamoto Y, Fujiwara A, Toyofuku H, Obi T, Chuma T. Prevalence of Salmonella in broiler chickens in Kagoshima, Japan in 2009 to 2012 and the relationship between serovars changing and antimicrobial resistance. BMC Vet Res 2019; 15:108. [PMID: 30961581 PMCID: PMC6454760 DOI: 10.1186/s12917-019-1836-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/04/2019] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND This study aimed to examine the prevalence, serovars, and antimicrobial resistance of Salmonella isolates from broiler chickens in Kagoshima, Japan. A total of 192 flocks and 3071 samples were collected from broiler chickens at local farms in Kagoshima, Japan from 2009 to 2012. RESULT Among the tested farms, 49.0% of flocks were positive for Salmonella, and 243 isolates were obtained from 3071 cecal samples (7.9%). All the Salmonella isolates were one of three serovars: S. Infantis (57.6%); (140/243), S. Manhattan (40.3%; 98/243 and S. Schwarzengrund (2.1%; 5/243). The proportion of S. Infantis isolates decreased from 66.0% in 2009 to 50.0% in 2011 but increased to 57.6% in 2012, while the proportion of S. Manhattan isolates significantly increased from 26.4 to 50% from 2009 to 2011, and decreased moderately to 40.9% in 2012. Most of the recovered Salmonella isolates were resistant to three antimicrobials, i.e., streptomycin (95.1%), sulfamethoxazole (91.0%) and oxytetracycline (91.4%). In contrast, all Salmonella strains were susceptible to chloramphenicol. Comparison of this study to previous studies of the antimicrobial susceptibility of Salmonella isolates showed that: the percentage of antibiotic-resistance isolates increased dramatically for two antibiotics, ampicillin (from 22.4 to 55.1%) and cefotaxime (from 9.1 to 52.7%). In contrast, the percentage of ofloxacin-resistant isolates decreased across the three survey periods, from 20.8% in 2004-2006 to 1.6% in the present study period (2009-2012). In addition, S. Infantis exhibited a variety of resistance to antimicrobials examined from sensitive to resistance to eight antimicrobials. Multidrug resistance to more than 6 six antimicrobials was detected in 113 (46.5%) of the isolates, and most of them were S. Manhattan. CONCLUSIONS There was a marked change in the serovars and antimicrobial resistance profiles of the Salmonella isolates in this study compared to those in previous studies. The percentage of S. Manhattan isolates increased as did the percentages of ampicillin- and cefotaxime-resistant isolates.
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Affiliation(s)
- Vu Minh Duc
- Laboratory of Veterinary Public Health, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065 Japan
| | - Yuko Nakamoto
- Laboratory of Veterinary Public Health, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065 Japan
| | - Ayaka Fujiwara
- Laboratory of Veterinary Public Health, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065 Japan
| | - Hajime Toyofuku
- The United Graduate School of Veterinary Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi, 753-8515 Japan
| | - Takeshi Obi
- Laboratory of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065 Japan
| | - Takehisa Chuma
- Laboratory of Veterinary Public Health, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065 Japan
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Affiliation(s)
| | | | - Vu Minh Duc
- Polymer Centre; Hanoi University of Science and Technology
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Affiliation(s)
- Nguyen Thi Thuy
- Polymer Center; Hanoi University of Science and Technology; Viet Nam
| | - Vu Minh Duc
- Polymer Center; Hanoi University of Science and Technology; Viet Nam
| | - Nguyen Thanh Liem
- Polymer Center; Hanoi University of Science and Technology; Viet Nam
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