Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand
Background and Aim: Bacteria of the genera Vibrio and Aeromonas cause seafood-borne zoonoses, which may have a significant impact on food safety, economy, and public health worldwide. The presence of drug-resistant and biofilm-forming phenotypes in the food chain increases the risk for consumers. Th...
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| Format: | Article |
| Language: | English |
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Veterinary World
2022-07-01
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| Series: | Veterinary World |
| Subjects: | |
| Online Access: | http://www.veterinaryworld.org/Vol.15/July-2022/37.pdf |
| _version_ | 1818015066919796736 |
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| author | Sirijan Santajit Thida Kong-ngoen Witawat Tunyong Pornpan Pumirat Sumate Ampawong Nitat Sookrung Nitaya Indrawattana |
| author_facet | Sirijan Santajit Thida Kong-ngoen Witawat Tunyong Pornpan Pumirat Sumate Ampawong Nitat Sookrung Nitaya Indrawattana |
| author_sort | Sirijan Santajit |
| collection | DOAJ |
| description | Background and Aim: Bacteria of the genera Vibrio and Aeromonas cause seafood-borne zoonoses, which may have a significant impact on food safety, economy, and public health worldwide. The presence of drug-resistant and biofilm-forming phenotypes in the food chain increases the risk for consumers. This study aimed to investigate the characteristics, virulence, biofilm production, and dissemination of antimicrobial-resistant pathogens isolated from seafood markets in Bangkok, Thailand.
Materials and Methods: A total of 120 retail seafood samples were collected from 10 local markets in Bangkok and peripheral areas. All samples were cultured and the Vibrio and Aeromonas genera were isolated using selective agar and biochemical tests based on standard protocols (ISO 21872-1: 2017). The antibiotic susceptibility test was conducted using the disk diffusion method. The presence of hemolysis and protease production was also investigated. Polymerase chain reaction (PCR) was used to determine the presence of the hlyA gene. Furthermore, biofilm formation was characterized by microtiter plate assay and scanning electron microscopy.
Results: The bacterial identification test revealed that 35/57 (61.4%) belonged to the Vibrio genus and 22/57 (38.6%) to the Aeromonas genus. The Kirby–Bauer test demonstrated that 61.4% of the isolates were resistant to at least one antibiotic and 45.61% had a high multiple antibiotic resistance index (≥0.2). PCR analysis indicated that 75.44% of the bacteria harbored the hlyA gene. Among them, 63.16% exhibited the hemolysis phenotype and 8.77% showed protease activity. The biofilm formation assay demonstrated that approximately 56.14% of all the isolates had the potential to produce biofilms. The moderate biofilm production was the predominant phenotype.
Conclusion: The results of this study provide evidence of the multiple drug resistance phenotype and biofilm formation capacity of Vibrio and Aeromonas species contaminating raw seafood. Effective control measures and active surveillance of foodborne zoonoses are crucial for food safety and to decrease the occurrence of diseases associated with seafood consumption. |
| first_indexed | 2024-04-14T06:53:21Z |
| format | Article |
| id | doaj.art-6664df43fbcd45a9bc954e71b850fbc7 |
| institution | Directory Open Access Journal |
| issn | 0972-8988 2231-0916 |
| language | English |
| last_indexed | 2024-04-14T06:53:21Z |
| publishDate | 2022-07-01 |
| publisher | Veterinary World |
| record_format | Article |
| series | Veterinary World |
| spelling | doaj.art-6664df43fbcd45a9bc954e71b850fbc72022-12-22T02:06:58ZengVeterinary WorldVeterinary World0972-89882231-09162022-07-011571887189510.14202/vetworld.2022.1887-1895Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, ThailandSirijan Santajit0https://orcid.org/0000-0002-1273-2618Thida Kong-ngoen1https://orcid.org/0000-0002-5756-5833Witawat Tunyong2https://orcid.org/0000-0001-9441-0075Pornpan Pumirat3https://orcid.org/0000-0002-5141-4671Sumate Ampawong4https://orcid.org/0000-0002-5378-2996Nitat Sookrung5https://orcid.org/0000-0002-7199-9435Nitaya Indrawattana6https://orcid.org/0000-0003-1571-528XDepartment of Medical Technology, School of Allied Health Sciences, Walailak University, Tha Sala, 80160, Thailand; Research Center in Tropical Pathobiology, Walailak University, Tha Sala, 80160, Thailand.Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.Biomedical Research Incubator Unit, Department of Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand; Center of Research Excellence on Therapeutic Proteins and Antibody Engineering, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand.Background and Aim: Bacteria of the genera Vibrio and Aeromonas cause seafood-borne zoonoses, which may have a significant impact on food safety, economy, and public health worldwide. The presence of drug-resistant and biofilm-forming phenotypes in the food chain increases the risk for consumers. This study aimed to investigate the characteristics, virulence, biofilm production, and dissemination of antimicrobial-resistant pathogens isolated from seafood markets in Bangkok, Thailand. Materials and Methods: A total of 120 retail seafood samples were collected from 10 local markets in Bangkok and peripheral areas. All samples were cultured and the Vibrio and Aeromonas genera were isolated using selective agar and biochemical tests based on standard protocols (ISO 21872-1: 2017). The antibiotic susceptibility test was conducted using the disk diffusion method. The presence of hemolysis and protease production was also investigated. Polymerase chain reaction (PCR) was used to determine the presence of the hlyA gene. Furthermore, biofilm formation was characterized by microtiter plate assay and scanning electron microscopy. Results: The bacterial identification test revealed that 35/57 (61.4%) belonged to the Vibrio genus and 22/57 (38.6%) to the Aeromonas genus. The Kirby–Bauer test demonstrated that 61.4% of the isolates were resistant to at least one antibiotic and 45.61% had a high multiple antibiotic resistance index (≥0.2). PCR analysis indicated that 75.44% of the bacteria harbored the hlyA gene. Among them, 63.16% exhibited the hemolysis phenotype and 8.77% showed protease activity. The biofilm formation assay demonstrated that approximately 56.14% of all the isolates had the potential to produce biofilms. The moderate biofilm production was the predominant phenotype. Conclusion: The results of this study provide evidence of the multiple drug resistance phenotype and biofilm formation capacity of Vibrio and Aeromonas species contaminating raw seafood. Effective control measures and active surveillance of foodborne zoonoses are crucial for food safety and to decrease the occurrence of diseases associated with seafood consumption.http://www.veterinaryworld.org/Vol.15/July-2022/37.pdfaeromonas spp.biofilm formationdrug resistancefoodborneseafoodvibriosis |
| spellingShingle | Sirijan Santajit Thida Kong-ngoen Witawat Tunyong Pornpan Pumirat Sumate Ampawong Nitat Sookrung Nitaya Indrawattana Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand Veterinary World aeromonas spp. biofilm formation drug resistance foodborne seafood vibriosis |
| title | Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand |
| title_full | Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand |
| title_fullStr | Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand |
| title_full_unstemmed | Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand |
| title_short | Occurrence, antimicrobial resistance, virulence, and biofilm formation capacity of Vibrio spp. and Aeromonas spp. isolated from raw seafood marketed in Bangkok, Thailand |
| title_sort | occurrence antimicrobial resistance virulence and biofilm formation capacity of vibrio spp and aeromonas spp isolated from raw seafood marketed in bangkok thailand |
| topic | aeromonas spp. biofilm formation drug resistance foodborne seafood vibriosis |
| url | http://www.veterinaryworld.org/Vol.15/July-2022/37.pdf |
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