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Li Q, Dou L, Zhang Y, Luo L, Yang H, Wen K, Yu X, Shen J, Wang Z. A comprehensive review on the detection of Staphylococcus aureus enterotoxins in food samples. Compr Rev Food Sci Food Saf 2024; 23:e13264. [PMID: 38284582 DOI: 10.1111/1541-4337.13264] [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: 07/31/2023] [Revised: 10/12/2023] [Accepted: 10/15/2023] [Indexed: 01/30/2024]
Abstract
Staphylococcal enterotoxins (SEs), the major virulence factors of Staphylococcus aureus, cause a wide range of food poisoning and seriously threaten human health by infiltrating the food supply chain at different phases of manufacture, processes, distribution, and market. The significant prevalence of Staphylococcus aureus calls for efficient, fast, and sensitive methods for the early detection of SEs. Here, we provide a comprehensive review of the hazards of SEs in contaminated food, the characteristic and worldwide regulations of SEs, and various detection methods for SEs with extensive comparison and discussion of benefits and drawbacks, mainly including biological detection, genetic detection, and mass spectrometry detection and biosensors. We highlight the biosensors for the screening purpose of SEs, which are classified according to different recognition elements such as antibodies, aptamers, molecularly imprinted polymers, T-cell receptors, and transducers such as optical, electrochemical, and piezoelectric biosensors. We analyzed challenges of biosensors for the monitoring of SEs and conclude the trends for the development of novel biosensors should pay attention to improve samples pretreatment efficiency, employ innovative nanomaterials, and develop portable instruments. This review provides new information and insightful commentary, important to the development and innovation of further detection methods for SEs in food samples.
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Affiliation(s)
- Qing Li
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Leina Dou
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Yingjie Zhang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Liang Luo
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Huijuan Yang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Kai Wen
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Xuezhi Yu
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Jianzhong Shen
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
| | - Zhanhui Wang
- National Key Laboratory of Veterinary Public Health safety, College of Veterinary Medicine China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing, China
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Purwanasari HN, Salasia SIO, Aziz F, Wasissa M, Lestari FB, Santosa CM. Development of antibodies against recombinant staphylococcal enterotoxin B from food poisoning cases. Vet World 2024; 17:131-135. [PMID: 38406354 PMCID: PMC10884591 DOI: 10.14202/vetworld.2024.131-135] [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: 10/19/2023] [Accepted: 12/11/2023] [Indexed: 02/27/2024] Open
Abstract
Background and Aim Staphylococcal enterotoxin B (SEB) is the most common serotype involved in food poisoning. The aim of this study was to develop immunoassay detection methods using a recombinant enterotoxin B antigen protein to produce recombinant polyclonal antibodies in vivo. Materials and Methods Staphylococcus aureus isolated from a food poisoning case (strain JH5800) was analyzed by polymerase chain reaction (PCR) and confirmed to contain a seb gene of 477 bp. A SEB segment was amplified, cloned, sequenced, and aligned. The PCR product corresponding to the predicted mature SEB peptide was inserted into Escherichia coli BL21 (DE-3) expression vector and expressed as a hexahistidine-SEB fusion protein. Antiserum against recombinant SEB protein was produced by immunization of Balb/c mice. Results In the indirect enzyme-linked immunosorbent assay (ELISA), the polyclonal antibodies produced had a titer of 1:3200. The seb gene of Staphylococcus aureus isolated from a poisoning case (JH5800) had a molecular size of about 477 bp and a band of recombinant SEB toxin was observed at approximately 30 kDa on SDS-PAGE gel. The polyclonal anti-SEB antibody titer, as revealed by indirect ELISA, was 1:3200 at 59 days. Conclusion SEB recombinant protein could be used to produce polyclonal antibodies. ELISA and Western blotting were used to analyze the specificity and sensitivity of the recombinant polyclonal antibodies. Polyclonal antibodies produced could be used to detect SEB on a large-scale.
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Affiliation(s)
- Hidayatun Nisa Purwanasari
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Siti Isrina Oktavia Salasia
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Fatkhanuddin Aziz
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Madarina Wasissa
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Fajar Budi Lestari
- Department of Bioresources Technology and Veterinary, Vocational College, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Hughes AC, Kirkland M, Du W, Rasooly R, Hernlem B, Tam C, Zhang Y, He X. Development of Thermally Stable Nanobodies for Detection and Neutralization of Staphylococcal Enterotoxin B. Toxins (Basel) 2023; 15:400. [PMID: 37368700 DOI: 10.3390/toxins15060400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/02/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
In this study, sixteen unique staphylococcal enterotoxin B (SEB)-reactive nanobodies (nbs), including ten monovalent and six bivalent nbs, were developed. All characterized nbs were highly specific for SEB and did not cross-react with other staphylococcal enterotoxins (SE). Several formats of highly sensitive enzyme-linked immunosorbent assays (ELISAs) were established using SEB nbs and a polyclonal antibody (pAb). The lowest limit of detection (LOD) reached 50 pg/mL in PBS. When applied to an ELISA to detect SEB-spiked milk (a commonly contaminated foodstuff), a LOD as low as 190 pg/mL was obtained. The sensitivity of ELISA was found to increase concurrently with the valency of nbs used in the assay. In addition, a wide range of thermal tolerance was observed among the sixteen nbs, with a subset of nbs, SEB-5, SEB-9, and SEB-62, retaining activity even after exposure to 95 °C for 10 min, whereas the conventional monoclonal and polyclonal antibodies exhibited heat-labile properties. Several nbs demonstrated a long shelf-life, with one nb (SEB-9) retaining 93% of its activity after two weeks of storage at room temperature. In addition to their usage in toxin detection, eleven out of fifteen nbs were capable of neutralizing SEB's super-antigenic activity, demonstrated by their inhibition on IL-2 expression in an ex vivo human PBMC assay. Compared to monoclonal and polyclonal antibodies, the nbs are relatively small, thermally stable, and easy to produce, making them useful in applications for sensitive, specific, and cost-effective detection and management of SEB contamination in food products.
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Affiliation(s)
- Anna C Hughes
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Marina Kirkland
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Wenxian Du
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Reuven Rasooly
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Bradley Hernlem
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Christina Tam
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Yuzhu Zhang
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
| | - Xiaohua He
- Western Regional Research Center United States Department of Agriculture, Agricultural Research Service, 800 Buchanan St., Albany, CA 94710, USA
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Florianova M, Korena K, Juricova H. Whole-genome analysis of methicillin-resistant and methicillin-sensitive Staphylococcus aureus in dry-fermented salami. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wang H, Chen D, Lu H. Anti-bacterial monoclonal antibodies: next generation therapy against superbugs. Appl Microbiol Biotechnol 2022; 106:3957-3972. [PMID: 35648146 DOI: 10.1007/s00253-022-11989-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 12/19/2022]
Abstract
Prior to the nineteenth century, infectious disease was one of the leading causes of death. Human life expectancy has roughly doubled over the past century as a result of the development of antibiotics and vaccines. However, the emergence of antibiotic-resistant superbugs brings new challenges. The side effects of broad-spectrum antibiotics, such as causing antimicrobial resistance and destroying the normal flora, often limit their applications. Furthermore, the development of new antibiotics has lagged far behind the emergence and spread of antibiotic resistance. On the other hand, the genome complexity of bacteria makes it difficult to create effective vaccines. Therefore, novel therapeutic agents in supplement to antibiotics and vaccines are urgently needed to improve the treatment of infections. In recent years, monoclonal antibodies (mAbs) have achieved remarkable clinical success in a variety of fields. In the treatment of infectious diseases, mAbs can play functions through multiple mechanisms, including toxins neutralization, virulence factors inhibition, complement-mediated killing activity, and opsonic phagocytosis. Toxins and bacterial surface components are good targets to generate antibodies against. The U.S. FDA has approved three monoclonal antibody drugs, and there are numerous candidates in the preclinical or clinical trial stages. This article reviews recent advances in the research and development of anti-bacterial monoclonal antibody drugs in order to provide a valuable reference for future studies in this area. KEY POINTS: • Novel drugs against antibiotic-resistant superbugs are urgently required • Monoclonal antibodies can treat bacterial infections through multiple mechanisms • There are many anti-bacterial monoclonal antibodies developed in recent years and some candidates have entered the preclinical or clinical stages of development.
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Affiliation(s)
- Hui Wang
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Daijie Chen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huili Lu
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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Highly sensitive detection of three protein toxins via SERS-lateral flow immunoassay based on SiO 2@Au nanoparticles. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 41:102522. [PMID: 35032631 DOI: 10.1016/j.nano.2022.102522] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 12/16/2021] [Accepted: 01/03/2022] [Indexed: 11/21/2022]
Abstract
We developed surface-enhanced Raman scattering-lateral flow immunoassay (SERS-LFIA) biosensor strips based on SiO2@Au nanoparticles (NPs) for the specific and highly sensitive detection of ricin, staphylococcal enterotoxin B (SEB), and botulinum neurotoxin type A (BoNT/A). SiO2@Au NPs were used to prepare SERS tags with useful properties, such as light weight, uniform particle size, good dispersion, and high SERS performance. The detection limit of the SERS-LFIA strips developed herein for ricin, SEB, and BoNT/A was 0.1, 0.05, and 0.1 ng/mL. Their sensitivity was 100-fold higher than that of colloidal gold-LFIA strips, and the same batch of strips had good repeatability. Moreover, the test was completed within 15 min, indicating that the strips are suitable for the rapid and on-site detection of the said toxins. The SERS-LFIA strips based on SiO2@Au NPs developed herein for the detection of toxins are important to the prevention of bioterrorism attacks.
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Bencardino D, Amagliani G, Brandi G. Carriage of Staphylococcus aureus among food handlers: An ongoing challenge in public health. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108362] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bergua JF, Hu L, Fuentes-Chust C, Álvarez-Diduk R, Hassan AHA, Parolo C, Merkoçi A. Lateral flow device for water fecal pollution assessment: from troubleshooting of its microfluidics using bioluminescence to colorimetric monitoring of generic Escherichia coli. LAB ON A CHIP 2021; 21:2417-2426. [PMID: 33973613 DOI: 10.1039/d1lc00090j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Water is the most important ingredient of life. Water fecal pollution threatens water quality worldwide and has direct detrimental effects on human health and the global economy. Nowadays, assessment of water fecal pollution relies on time-consuming techniques that often require well-trained personnel and highly-equipped laboratories. Therefore, faster, cheaper, and easily-used systems are needed to in situ monitor water fecal pollution. Herein, we have developed colorimetric lateral flow strips (LFS) able to detect and quantify Escherichia coli species in tap, river, and sewage water samples as an indicator of fecal pollution. The combination of LFS with a simple water filtration unit and a commercially available colorimetric reader enhanced the assay sensitivity and enabled more accurate quantification of bacteria concentration down to 104 CFU mL-1 in 10 minutes, yielding recovery percentages between 80% and 90% for all water samples analyzed. Overall, this system allows for monitoring and assessing water quality based on E. coli species as a standard microbiological indicator of fecal pollution. Furthermore, we have developed a novel bioluminescent, bacteria-based method to quickly characterize the performance of a great variety of LFS materials. This new method allows evaluating the flow rate of big analytes such as bacteria through the LFS materials, as a suggestive means for selecting the appropriate materials for fabricating LFS targeting big analytes (≈2 μm). As a whole, the proposed approach can accelerate and reduce the costs of water quality monitoring and pave the way for further improvement of fecal pollution detection systems.
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Affiliation(s)
- José Francisco Bergua
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Liming Hu
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Celia Fuentes-Chust
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Ruslan Álvarez-Diduk
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Abdelrahim H A Hassan
- Department of Food Safety and Technology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Claudio Parolo
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain. and ICREA, Institució Catalana de Recerca i Estudis Avançats, Pg. Lluís Companys, 23, 08010, Barcelona, Spain
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Hnasko RM, Jackson ES, Lin AV, Haff RP, McGarvey JA. A rapid and sensitive lateral flow immunoassay (LFIA) for the detection of gluten in foods. Food Chem 2021; 355:129514. [PMID: 33774225 DOI: 10.1016/j.foodchem.2021.129514] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/27/2021] [Accepted: 02/28/2021] [Indexed: 12/11/2022]
Abstract
The gluten protein found in a variety of cereal grains is a food allergen that can elicit a spectrum of immuno-inflammatory responses in people. Consumer awareness has prompted changes in food labeling requirements, expanded gluten-free food product availability and increased demand for effective gluten testing methodologies. To meet the challenges associated with gluten testing from diverse and complex foods we developed a lateral flow immunoassay (LFIA) using a pair of novel gliadin monoclonal antibodies (MAbs). Using a visual gold reporter, we show sensitive gluten detection (150 ng/mL) from complex food substrates using a fast (<5 min) and easy testing methodology. In this report we characterize the binding properties of a cohort of newly generated gliadin monoclonal antibodies suitable for gluten detection using multiple assay formats and introduce a novel plug-n-play test strip platform with integrated test components in a single-use format.
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Affiliation(s)
- Robert M Hnasko
- United States Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center (USDA-ARS-PWA-WRRC), 800 Buchanan St., Albany, CA 94710, United States.
| | - Eric S Jackson
- United States Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center (USDA-ARS-PWA-WRRC), 800 Buchanan St., Albany, CA 94710, United States
| | - Alice V Lin
- United States Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center (USDA-ARS-PWA-WRRC), 800 Buchanan St., Albany, CA 94710, United States
| | - Ronald P Haff
- United States Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center (USDA-ARS-PWA-WRRC), 800 Buchanan St., Albany, CA 94710, United States
| | - Jeffery A McGarvey
- United States Department of Agriculture, Agricultural Research Service, Pacific West Area, Western Regional Research Center (USDA-ARS-PWA-WRRC), 800 Buchanan St., Albany, CA 94710, United States
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Petróczki FM, Pásztor Á, Szűcs KD, Pál K, Kardos G, Albert E, Horváth B, Ungvári E, Béri B, Peles F. Occurrence and Characteristics of Staphylococcus aureus in a Hungarian Dairy Farm during a Control Program. Pathogens 2021; 10:pathogens10020104. [PMID: 33494548 PMCID: PMC7911970 DOI: 10.3390/pathogens10020104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 11/19/2022] Open
Abstract
In this research, our aim was to assess the occurrence of Staphylococcus aureus in a Hungarian large-scale dairy farm during the S. aureus control program conducted in the course of our studies. Furthermore, the phenotypic and genotypic properties of the isolates (type of haemolysis, antibiotic susceptibility, staphylococcal enterotoxin (SE) gene carrying ability and spa type) were determined. S. aureus was detected in all bulk tank milk samples collected during this study. Two different spa types were identified among the 17 strains isolated in the farm. A total of 14 of the 17 studied strains (82%) showed β-haemolysis on blood agar, 2/17 strains (12%) expressed double zone and 1/17 strains (6%) showed weak β-haemolysis. All strains were susceptible to most antibiotics tested (cefoxitin, chloramphenicol, clindamycin, erythromycin, gentamicin, tetracycline and trimethoprim/sulphamethoxazole), but all strains were resistant to penicillin G. A total of 11 of the 17 strains (65%) were found to harbour seg, sei, selm, seln, selo genes; 4/17 strains (24%) harboured sei, selm, seln, selo genes and 2/17 strains (11%) harboured sei gene. Since the new SEs/SEls can also cause foodborne outbreaks potentially and all strains were found to be resistant to penicillin G, it is essential to decrease and keep the prevalence of S. aureus low in the dairy farm and the implementation of the S. aureus control program is also highly justified. The results showed that the S. aureus count decreased by the end of our studies, so the control program was proved to be effective.
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Affiliation(s)
- Flóra M. Petróczki
- Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Food Science, University of Debrecen, 4032 Debrecen, Hungary; (K.P.); (F.P.)
- Faculty of Agricultural and Food Sciences and Environmental Management, Doctoral School of Animal Science, University of Debrecen, 4032 Debrecen, Hungary;
- Correspondence: ; Tel.: +36-30-994-3360
| | | | - Kata D. Szűcs
- Pázmány Péter Catholic University, 1088 Budapest, Hungary;
| | - Károly Pál
- Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Food Science, University of Debrecen, 4032 Debrecen, Hungary; (K.P.); (F.P.)
| | - Gábor Kardos
- Faculty of Medicine, Department of Medical Microbiology, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ervin Albert
- Department of Pathology, University of Veterinary Medicine, H-2225 Üllő, Hungary;
| | - Brigitta Horváth
- Faculty of Agricultural and Food Sciences and Environmental Management, Doctoral School of Animal Science, University of Debrecen, 4032 Debrecen, Hungary;
- Department of Animal Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary;
| | - Erika Ungvári
- Department of Bacteriology, Mycology and Parasitology, National Public Health Center, 1097 Budapest, Hungary;
| | - Béla Béri
- Department of Animal Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ferenc Peles
- Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Food Science, University of Debrecen, 4032 Debrecen, Hungary; (K.P.); (F.P.)
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