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Fate of natural bacterial flora, and artificially inoculated Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella enterica in raw ground chicken meat with added oregano oil or tannic acid alone or combined. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Bishop H, Evans J, Eze JI, Webster C, Humphry RW, Beattie R, White J, Couper J, Allison L, Brown D, Tongue SC. Bacteriological Survey of Fresh Minced Beef on Sale at Retail Outlets in Scotland in 2019: Three Foodborne Pathogens, Hygiene Process Indicators, and Phenotypic Antimicrobial Resistance. J Food Prot 2022; 85:1370-1379. [PMID: 35653627 DOI: 10.4315/jfp-22-051] [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: 02/22/2022] [Accepted: 05/26/2022] [Indexed: 11/11/2022]
Abstract
ABSTRACT The health and economic burden of foodborne illness is high, with approximately 2.4 million cases occurring annually in the United Kingdom. A survey to understand the baseline microbial quality and prevalence of food-related hazards of fresh beef mince on retail sale could inform risk assessment, management, and communication to ensure the safety of this commodity. In such a survey, a two-stage sampling design was used to reflect variations in population density and the market share of five categories of retail outlets in Scotland. From January to December 2019, 1,009 fresh minced beef samples were collected from 15 geographic areas. The microbial quality of each sample was assessed using aerobic colony count and Escherichia coli count. Samples were cultured for Campylobacter and Salmonella, and PCR was used to detect target genes (stx1 all variants, stx2 a to g, and rfbO157) for Shiga toxin-producing E. coli (STEC). The presence of viable E. coli O157 and STEC in samples with a positive PCR signal was confirmed via culture and isolation. Phenotypic antimicrobial sensitivity patterns of cultured pathogens and 100 E. coli isolates were determined, mostly via disk diffusion. The median aerobic colony count and E. coli counts were 6.4 × 105 (interquartile range, 6.9 × 104 to 9.6 × 106) and <10 CFU/g (interquartile range, <10 to 10) of minced beef, respectively. The prevalence was 0.1% (95% confidence interval [CI], 0 to 0.7%) for Campylobacter, 0.3% (95% CI, 0 to 1%) for Salmonella, 22% (95% CI, 20 to 25%) for PCR-positive STEC, and 4% (95% CI, 2 to 5%) for culture-positive STEC. The evidence for phenotypic antimicrobial resistance detected did not give cause for concern, mainly occurring in a few E. coli isolates as single nonsusceptibilities to first-line active substances. The low prevalence of pathogens and phenotypic antimicrobial resistance is encouraging, but ongoing consumer food safety education is necessary to mitigate the residual public health risk. HIGHLIGHTS
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Affiliation(s)
- H Bishop
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK
| | - J Evans
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK
| | - J I Eze
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK.,Biomathematics & Statistics Scotland, JCMB, The King's Buildings, Edinburgh EH9 3FD, UK
| | - C Webster
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK
| | - R W Humphry
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK
| | - R Beattie
- Scientific Services Laboratories of Edinburgh, Glasgow and Tayside Councils, 6 James Lindsay Place, Dundee, DD1 5JJ, 4 Marine Esplanade, Edinburgh EH6 7LU, and Colston Laboratories 64 Everard Drive, Glasgow G21 1XG, UK
| | - J White
- Scientific Services Laboratories of Edinburgh, Glasgow and Tayside Councils, 6 James Lindsay Place, Dundee, DD1 5JJ, 4 Marine Esplanade, Edinburgh EH6 7LU, and Colston Laboratories 64 Everard Drive, Glasgow G21 1XG, UK
| | - J Couper
- Scientific Services Laboratories of Edinburgh, Glasgow and Tayside Councils, 6 James Lindsay Place, Dundee, DD1 5JJ, 4 Marine Esplanade, Edinburgh EH6 7LU, and Colston Laboratories 64 Everard Drive, Glasgow G21 1XG, UK
| | - L Allison
- Scottish Microbiological Reference Laboratories (SMiRL) (Edinburgh and Glasgow), Scottish E. coli O157/STEC Reference Laboratory (SERL), Department of Laboratory Medicine, Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, and Level 5, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow G21 3ER, UK
| | - D Brown
- Scottish Microbiological Reference Laboratories (SMiRL) (Edinburgh and Glasgow), Scottish E. coli O157/STEC Reference Laboratory (SERL), Department of Laboratory Medicine, Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, and Level 5, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow G21 3ER, UK
| | - S C Tongue
- Scotland's Rural College, An Lochran, 10 Inverness Campus, Inverness IV2 5NA, UK
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Mahmoodzadeh Hosseini H, Hamzeh Pour S, Amani J, Jabbarzadeh S, Hosseinabadi M, Mirhosseini SA. The effect of Propolis on inhibition of Aspergillus parasiticus growth, aflatoxin production and expression of aflatoxin biosynthesis pathway genes. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:297-302. [PMID: 32399241 PMCID: PMC7203247 DOI: 10.1007/s40201-020-00467-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/04/2020] [Accepted: 03/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND PURPOSE Aflatoxins are one of the most important mycotoxins, which have been classified as Group I carcinogenic compounds by the International Agency for Research on Cancer. This investigation aimed to examine the effect of Propolis on inhibition of the Aspergillus parasiticus growth, aflatoxin production and expression of aflatoxin biosynthesis pathway genes. MATERIALS AND METHODS A standard strain of Aspergillus parasiticus (ATCC 15517) was used to perform antifungal susceptibility test, using a microdilution method in accordance with the CLSI M38-A2 guidelines. The aflatoxin concentrations in the control and treated media were determined by HPLC. Also, the quantitative changes in the level of nor-1, ver-1 and omtA genes expression in aflatoxin biosynthetic pathway were analyzed using Real-Time PCR method. RESULTS The results showed that the minimum inhibitory concentrations (MIC) of propolis was 100 µg/ml. The results showed that total levels of aflatoxin decreased from 386.1 ppm to 3.01 ppm at 50 µg/ml of propolis. In addition, quantitative real-time PCR analysis showed that the level of nor-1, ver-1 and omtA genes expression was significantly decreased after treatment with propolis extract. CONCLUSIONS The findings reveal that propolis extract, have a significant inhibitory effect on important genes for aflatoxin biosynthesis pathway in aflatoxin production.
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Affiliation(s)
- Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Siavash Hamzeh Pour
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sima Jabbarzadeh
- Department of plant biology, Higher Education Institute of Rabe-Rashid, Tabriz, Iran
| | - Mostafa Hosseinabadi
- Department of Food Science and Technology, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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4
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Hamzeh Pour S, Khodavaisy S, Mahmoudi S, Vaziri S, Soltan Dallal MM, Oliya S, Getso M, Rezaie S. The effect of royal jelly and propolis alone and in combination on inhibition of
Aspergillus parasiticus
growth, aflatoxin production, and
aflR
gene expression. J Food Saf 2020. [DOI: 10.1111/jfs.12815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Siavash Hamzeh Pour
- Department of Pathobiology, School of Public HealthTehran University of Medical Sciences Tehran Iran
| | - Sadegh Khodavaisy
- Zoonoses Research Center, Research Institute for Health DevelopmentKurdistan University of Medical Sciences Sanandaj Iran
- Department of Medical Parasitology and Mycology, School of Public HealthTehran University of Medical Sciences Tehran Iran
| | - Shahram Mahmoudi
- Department of Medical Parasitology and Mycology, School of MedicineIran University of Medical Sciences Tehran Iran
| | - Samira Vaziri
- Department of BiologyPayame Noor University Tehran PO Box 19395‐4697 Iran
| | | | - Soniya Oliya
- Department of Nutrition, School of Public HealthQazvin University of Medical Sciences Qazvin Iran
| | - Muhammad Getso
- Department of Medical Parasitology and Mycology, School of Public HealthTehran University of Medical Sciences Tehran Iran
- Department of Medical Microbiology and ParasitologyCollege of Health Sciences, Bayero University Kano Nigeria
| | - Sassan Rezaie
- Department of Medical Parasitology and Mycology, School of Public HealthTehran University of Medical Sciences Tehran Iran
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5
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Zendeh MB, Razavilar V, Mirzaei H, Mohammadi K. Antimicrobial Effects of Zataria multiflora and Ocimum basilicum on Escherichia coli O157:H7 During Ripening of Traditional Lighvan Cheese. CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401315666181218151541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Escherichia coli O157:H7 is one of the most common causes of contamination
in Lighvan cheese processing. Using from natural antimicrobial essential oils is applied method
to decrease the rate of microbial contamination of dairy products. The present investigation was done
to study the antimicrobial effects of Z. multiflora and O. basilicum essential oils on survival of E. coli
O157:H7 during ripening of traditional Lighvan cheese.
Methods:
Leaves of the Z. multiflora and O. basilicum plants were subjected to the Clevenger
apparatus. Concentrations of 0, 100 and 200 ppm of the Z. multiflora and 0, 50 and 100 ppm of
O. basilicum essential oils and also 103 and 105 cfu/ml numbers of E. coli O157:H7 were used. The
numbers of the E. coli O157:H7 bacteria were analyzed during the days 0, 30, 60 and 90 of the
ripening period.
Results:
Z. multiflora and O. basilicum essential oils had considerable antimicrobial effects against
E. coli O157:H7. Using the essential oils caused decrease in the numbers of E. coli O157:H7 bacteria
in 90th days of ripening (P <0.05). Using from Z. multiflora at concentration of 200 ppm can reduce
the survival of E. coli O157:H7 in Lighvan cheese.
Conclusion:
Using Z. multiflora and O. basilicum essential oils as good antimicrobial agents can reduce
the risk of foodborne bacteria and especially E. coli O157:H7 in food products.
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Affiliation(s)
- Mohammad B. Zendeh
- Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Vadood Razavilar
- Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamid Mirzaei
- Department of Food Hygiene, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Khosrow Mohammadi
- Department of Food Hygiene, Tabriz Branch, Islamic Azad University, Tabriz, Iran
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6
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Basauri A, González-Fernández C, Fallanza M, Bringas E, Fernandez-Lopez R, Giner L, Moncalián G, de la Cruz F, Ortiz I. Biochemical interactions between LPS and LPS-binding molecules. Crit Rev Biotechnol 2020; 40:292-305. [DOI: 10.1080/07388551.2019.1709797] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Arantza Basauri
- Departamento de Ingenierías Química y Biomolecular, Universidad de Cantabria, Santander, Spain
| | | | - Marcos Fallanza
- Departamento de Ingenierías Química y Biomolecular, Universidad de Cantabria, Santander, Spain
| | - Eugenio Bringas
- Departamento de Ingenierías Química y Biomolecular, Universidad de Cantabria, Santander, Spain
| | - Raúl Fernandez-Lopez
- Instituto de Biomedicina y Biotecnologia (IBBTEC), CSIC, Universidad de Cantabria, Santander, Spain
| | - Laura Giner
- Instituto de Biomedicina y Biotecnologia (IBBTEC), CSIC, Universidad de Cantabria, Santander, Spain
| | - Gabriel Moncalián
- Instituto de Biomedicina y Biotecnologia (IBBTEC), CSIC, Universidad de Cantabria, Santander, Spain
| | - Fernando de la Cruz
- Instituto de Biomedicina y Biotecnologia (IBBTEC), CSIC, Universidad de Cantabria, Santander, Spain
| | - Inmaculada Ortiz
- Departamento de Ingenierías Química y Biomolecular, Universidad de Cantabria, Santander, Spain
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7
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Duc HM, Son HM, Yi HPS, Sato J, Ngan PH, Masuda Y, Honjoh KI, Miyamoto T. Isolation, characterization and application of a polyvalent phage capable of controlling Salmonella and Escherichia coli O157:H7 in different food matrices. Food Res Int 2020; 131:108977. [PMID: 32247506 DOI: 10.1016/j.foodres.2020.108977] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/01/2020] [Accepted: 01/01/2020] [Indexed: 12/17/2022]
Abstract
Salmonella Enteritidis, Salmonella Typhimurium, and Escherichia coli O157:H7 are the most important foodborne pathogens, causing serious food poisoning outbreaks worldwide. Bacteriophages are increasingly considered as novel antibacterial agents to control foodborne pathogens. In this study, 8 Salmonella phages and 10 E. coli O157:H7 phages were isolated from chicken products. A polyvalent phage PS5 capable of infecting S. Enteritidis, S. Typhimurium, and E. coli O157:H7 was further characterized and its efficacy in reducing these foodborne pathogens was evaluated in in vitro and in foods. Morphology, one-step growth, and stability assay showed that phage PS5 was a myovirus, with relatively short latent periods, large burst sizes, and high stability. Genome sequencing analysis revealed that the genome of PS5 does not contain any genes associated to antibiotic resistance, toxins, lysogeny, and virulence factors. In broth, phage PS5 significantly decreased the viable counts of all the three bacterial hosts by more than 1.3 log CFU/mL compared to controls after 2 h of incubation at 4 °C and 24 °C. In foods, treatment with PS5 also resulted in significant reductions of viable counts of all the three bacterial hosts compared to controls at temperatures tested. This is the first report on single phage capable of simultaneously controlling S. Enteritidis, S. Typhimurium and E. coli O157:H7 in both in vitro and in foods.
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Affiliation(s)
- Hoang Minh Duc
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
| | - Hoang Minh Son
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hazel Pang Shu Yi
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Jun Sato
- Safety Science Research, R&D, Kao Corporation, 2606 Akabane, Ichikai-Machi, Haga-Gun, Tochigi 321-3497, Japan.
| | - Pham Hong Ngan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Viet Nam
| | - Yoshimitsu Masuda
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
| | - Ken-Ichi Honjoh
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
| | - Takahisa Miyamoto
- Laboratory of Food Hygienic Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University. 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
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8
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Furukawa I, Suzuki M, Masaoka T, Nakajima N, Mitani E, Tasaka M, Teranishi H, Matsumoto Y, Koizumi M, Ogawa A, Oota Y, Homma S, Sasaki K, Satoh H, Sato K, Muto S, Anan Y, Kuroki T. Outbreak of Enterohemorrhagic Escherichia coli O157:H7 Infection Associated with Minced Meat Cutlets Consumption in Kanagawa, Japan. Jpn J Infect Dis 2018; 71:436-441. [DOI: 10.7883/yoken.jjid.2017.495] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Ichiro Furukawa
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
| | - Miyuki Suzuki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
| | - Tomoka Masaoka
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
| | - Naoki Nakajima
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
| | - Eriko Mitani
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
| | - Masako Tasaka
- Department of Planning and Information, Kanagawa Prefectural Institute of Public Health
| | - Hiroshi Teranishi
- Department of Planning and Information, Kanagawa Prefectural Institute of Public Health
| | - Yuko Matsumoto
- Microbiological Testing and Research Division, Yokohama City Institute of Public Health
| | - Mitsumasa Koizumi
- Microbiological Testing and Research Division, Yokohama City Institute of Public Health
| | - Atsuko Ogawa
- Microbiological Testing and Research Division, Yokohama City Institute of Public Health
| | - Yoshimi Oota
- Microbiological Testing and Research Division, Yokohama City Institute of Public Health
| | - Sachiko Homma
- Department of Microbiology, Kawasaki City Institute for Public Health
| | - Kuniharu Sasaki
- Department of Microbiology, Kawasaki City Institute for Public Health
| | | | - Ken Sato
- Sanitary Inspection Center, Fujisawa Health Care Center
| | - Shunichi Muto
- Environmental Sanitation Division, Fujisawa Health Care Center
| | | | - Toshiro Kuroki
- Department of Microbiology, Kanagawa Prefectural Institute of Public Health
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9
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Yadolahi-Baghloei M, Pajohi-Alamoti M, Bazargani-Gilani B. Behavior of Staphylococcus aureus
Affected by Sumac Water Extract in vitro
and Koobideh Kebab. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.13078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Mohsen Yadolahi-Baghloei
- Department of Food Hygiene and Quality Control, Faculty of Para-Veterinary Sciences; Bu-Ali Sina University; Hamedan Iran
| | - Mohammadreza Pajohi-Alamoti
- Department of Food Hygiene and Quality Control, Faculty of Para-Veterinary Sciences; Bu-Ali Sina University; Hamedan Iran
| | - Behnaz Bazargani-Gilani
- Department of Food Hygiene and Quality Control, Faculty of Para-Veterinary Sciences; Bu-Ali Sina University; Hamedan Iran
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10
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Ayaz ND, Copuroglu G, Ormeci E, Oz B. Presence of Staphylococcus aureus and Shiga Toxigenic Escherichia coli O157:H7 in Raw Meat in Ağrı, Turkey. INTERNATIONAL JOURNAL OF ENTERIC PATHOGENS 2016. [DOI: 10.17795/ijep36523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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11
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Siewe FB, Mbougueng PD, Tatsadjieu LN, Noumo TN, Mbofung CMF. The Potential Application of <i>Syzygium aromaticum</i> and <i>Cymbopogon citratus</i> Essential Oils as Natural Preservatives of Beef Patties. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/fns.2015.63038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Scientific Opinion on the public health risks related to the maintenance of the cold chain during storage and transport of meat. Part 2 (minced meat from all species). EFSA J 2014. [DOI: 10.2903/j.efsa.2014.3783] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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13
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Jayasena DD, Jo C. Potential Application of Essential Oils as Natural Antioxidants in Meat and Meat Products: A Review. FOOD REVIEWS INTERNATIONAL 2013. [DOI: 10.1080/87559129.2013.853776] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Ertas N, Gonulalan Z, Yildirim Y, Karadal F, Abay S, Al S. Detection of Escherichia coli O157:H7 using immunomagnetic separation and mPCR in Turkish foods of animal origin. Lett Appl Microbiol 2013; 57:373-9. [PMID: 23809061 DOI: 10.1111/lam.12124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 06/24/2013] [Accepted: 06/24/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED The present study was conducted to investigate the presence of Escherichia coli O157:H7 in food samples of animal origin and to detect its virulence genes by immunomagnetic separation technique and multiplex PCR (mPCR). A total of 500 samples (consisting of diced meat, minced meat, burger, raw cow's milk and raw cow's milk cheese) were analysed. Escherichia coli O157:H7 was detected in 5 (1%) of 500 analysed samples including two diced meat, one minced meat and two raw-milk cheese. None of the burger samples tested contained E. coli O157:H7. Three isolates obtained from minced and diced meat were found to carry stx1 , stx2 , hlyA and eaeA genes whereas two isolates from raw-milk cheese were found to harbour the stx1 , eaeA and hlyA genes. The results of this study suggest that raw meat and raw-milk cheese tested could pose public health problems in consumers with regard to their virulence factors. SIGNIFICANCE AND IMPACT OF THE STUDY Escherichia coli (E. coli) O157:H7 is an important human pathogen. Escherichia coli 0157:H7 infections have been associated with consumption of uncooked meat and meat products, as well as unpasteurized dairy products. This study demonstrated that without specific tests for E. coli virulence factors raw meat and raw-milk cheese could pose public health problems to Turkish consumers.
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Affiliation(s)
- N Ertas
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey
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15
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Prevalence, genetic characterization and virulence genes of sorbitol-fermenting Escherichia coli O157:H- and E. coli O157:H7 isolated from retail beef. Int J Food Microbiol 2013; 165:295-301. [PMID: 23803571 DOI: 10.1016/j.ijfoodmicro.2013.05.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 05/01/2013] [Accepted: 05/24/2013] [Indexed: 11/21/2022]
Abstract
Sorbitol-fermenting (SF) Escherichia coli O157:H- strains have emerged as important pathogens and have been associated with a higher incidence of progression to hemolytic-uremic syndrome (HUS) than non-sorbitol fermenting (NSF) E. coli O157:H7. The present study was carried out to determine the prevalence of SF E. coli O157:H- and NSF E. coli O157:H7 strains in retail beef products in Mansoura, Egypt. The contamination rates with rfbEO157-positive E. coli O157 strains were 26.7% (8/30), 10% (3/30) and 3.7% (1/27) in ground beef, beef burger, and fresh beef samples, respectively with an overall mean of 13.8% (12/87) among all meat products tested. SF E. coli O157:H- were the most dominant among the isolated O157 strains. Of the fifteen O157 strains isolated, 11 (73.3%) were SF E. coli O157:H-, while the remaining 4 (26.7%) were NSF E. coli O157:H7. The 11 SF O157H- strains were genetically positive for sfpA gene. Restriction fragment length polymorphism (RFLP) analysis for fliC gene demonstrated a similar pattern for both SF and NSF O157 isolates. PCR assays verified the existence of stx1 gene in 7 (46.7%) and stx2 gene in 13 (86.7%) of the 15 O157 strains isolated. Unexpectedly, two of the 15 O157 strains isolated were negative for Shiga toxin genes. The eae gene was identified in all of the 15 O157 strains except in one NSF O157:H7 strain. EHEC-hlyA gene was detected in 14 (93.3%) of the 15 O157 isolates, nonetheless only 11 strains showed enterohemolytic phenotype on blood agar. A combination of the four virulence genes, stx1, stx2, eae and EHEC-hlyA were detected in 7 (46.7%) strains, while six (40%) strains were positive for stx2, eae and hlyA genes. This is the first record for isolation of E. coli O157: H- in Egypt as well as in the African continent.
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16
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Prevalence and antimicrobial susceptibility of Escherichia coli O157:H7 on beef cattle slaughtered in Amman abattoir. Meat Sci 2012; 93:463-8. [PMID: 23273451 DOI: 10.1016/j.meatsci.2012.11.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 07/23/2012] [Accepted: 11/10/2012] [Indexed: 11/23/2022]
Abstract
Cattle are the main asymptomatic reservoir of Escherichia coli O157:H7 which can cause illness to human. The objectives of the study were to measure the prevalence of E. coli O157:H7 on cattle slaughtered in Amman abattoir, detect virulence factors in the isolates, determine antibacterial resistance of the isolates, and know how the isolates are different or similar when compared to characterized isolates from developed countries. A total of 540 samples (feces, hide, and carcass) were tested for E. coli O157:H7 using the method of ISO 16654:(E). Conventional and multiplex PCR assays were used for serotype confirmation and virulence factor detection, respectively. Fifty E. coli O157:H7 isolates were identified and virulence factors eaeA and hlyA were present in all of the isolates. 60%, 12%, and 22% of the isolates harbored stx(1), stx(2), and stx(1) and stx(2), respectively. The prevalence rates of enterotoxigenic E. coli O157:H7 (n=47) were 8.3%, 10%, and 7.8% in feces, hides and carcasses, respectively. The antimicrobial profiles of the isolates showed an extensive resistance to erythromycin, neomycin and vancomycin and high sensitivity to ampicillin, ciprofloxacin, gentamicin, kanamycin and tetracycline.
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Charimba G, Hugo C, Hugo A. The incidence of diarrhoeagenic Escherichia coli in minced beef and boerewors. Food Res Int 2012. [DOI: 10.1016/j.foodres.2011.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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RODRÍGUEZ VAQUERO MARÍAJ, AREDES FERNÁNDEZ PEDROA, MANCA DE NADRA MARÍAC, STRASSER DE SAAD ANAM. EFFECT OF PHENOLIC COMPOUNDS FROM ARGENTINEAN RED WINES ON PATHOGENIC BACTERIA IN A MEAT MODEL SYSTEM. J Food Biochem 2012. [DOI: 10.1111/j.1745-4514.2011.00648.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Reduction of verotoxigenic Escherichia coli in production of fermented sausages. Meat Sci 2011; 89:286-95. [DOI: 10.1016/j.meatsci.2011.04.031] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 04/26/2011] [Accepted: 04/29/2011] [Indexed: 01/15/2023]
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20
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Etcheverría A, Padola N, Sanz M, Polifroni R, Krüger A, Passucci J, Rodríguez E, Taraborelli A, Ballerio M, Parma A. Occurrence of Shiga toxin-producing E. coli (STEC) on carcasses and retail beef cuts in the marketing chain of beef in Argentina. Meat Sci 2010; 86:418-21. [DOI: 10.1016/j.meatsci.2010.05.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Revised: 03/16/2010] [Accepted: 05/14/2010] [Indexed: 11/27/2022]
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21
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King LA, Mailles A, Mariani-Kurkdjian P, Vernozy-Rozand C, Montet MP, Grimont F, Pihier N, Devalk H, Perret F, Bingen E, Espié E, Vaillant V. Community-wide outbreak of Escherichia coli O157:H7 associated with consumption of frozen beef burgers. Epidemiol Infect 2009; 137:889-96. [PMID: 18945376 DOI: 10.1017/s0950268808001490] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
On 24-25 October 2005 a cluster of five haemolytic uraemic syndrome (HUS) cases was reported in southwest France. An investigation was undertaken to identify the outbreak source and implement control measures. Cases were defined as individuals with HUS or diarrhoea with isolation of Escherichia coli O157:H7 in stools or a positive antibody response to E. coli O157 lipopolysaccharide, resident in southwest France with symptom onset after 19 September 2005. Sixty-nine identified patients had symptom onset between 5 October and 3 November 2005, including 17 cases of HUS. One brand of frozen beef burgers produced on 22 August 2005 was consumed by all patients in the week before symptom onset. E. coli O157:H7 strains from patients, patients' burgers and the manufacturing plant were genetically related. This is the largest community-wide outbreak of E. coli O157:H7 in France to date and the first associated with consumption of contaminated frozen beef burgers.
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Affiliation(s)
- L A King
- Institut de Veille Sanitaire, Saint Maurice, France.
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Prevalence and characterization of Escherichia coli O157:H7 isolates from meat and meat products sold in Amathole District, Eastern Cape Province of South Africa. Food Microbiol 2009; 26:173-6. [DOI: 10.1016/j.fm.2008.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Revised: 06/02/2008] [Accepted: 10/01/2008] [Indexed: 11/22/2022]
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23
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Detection of Escherichia coli O157:H7 in ground beef using immunomagnetic separation and multiplex PCR. Food Control 2009. [DOI: 10.1016/j.foodcont.2008.06.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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Nastasijevic I, Mitrovic R, Buncic S. The occurrence of Escherichia coli O157 in/on faeces, carcasses and fresh meats from cattle. Meat Sci 2008; 82:101-5. [PMID: 20416614 DOI: 10.1016/j.meatsci.2008.12.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 11/09/2008] [Accepted: 12/15/2008] [Indexed: 11/15/2022]
Abstract
The aim of this study was to investigate whether Escherichia coli O157 is present in/on raw beef in Serbia. Correlated faecal and carcasses samples from 115 slaughtered cattle plus 26 uncorrelated carcass samples were examined. E. coli O157 detection and identification was performed using selective enrichment and immunomagnetic separation followed by selective media-plating and biochemical tests. The E. coli O157 occurrences were 2.6% in faeces and 2.8% on carcasses. The E. coli O157 occurrences were 0%, 6.2% and 2.1%, respectively, in 106 samples of beef trimmings, 48 samples of minced beef and 48 samples of batter intended for production of raw, fermented sausages. The results confirmed that faecal contamination is very important for the occurrence of E. coli O157 on beef carcasses. Furthermore, the present study revealed occasional presence of the pathogen in raw materials used for producing raw, fermented beef sausages.
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Affiliation(s)
- I Nastasijevic
- Institute of Meat Hygiene and Technology, Kacanskog 13, 11000 Belgrade, Serbia
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25
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Quantitative risk assessment for Escherichia coli O157:H7 in frozen ground beef patties consumed by young children in French households. Int J Food Microbiol 2008; 128:158-64. [DOI: 10.1016/j.ijfoodmicro.2008.05.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 05/28/2008] [Accepted: 05/30/2008] [Indexed: 11/20/2022]
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26
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Solomakos N, Govaris A, Koidis P, Botsoglou N. The antimicrobial effect of thyme essential oil, nisin and their combination against Escherichia coli O157:H7 in minced beef during refrigerated storage. Meat Sci 2008; 80:159-66. [DOI: 10.1016/j.meatsci.2007.11.014] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Revised: 10/07/2007] [Accepted: 11/19/2007] [Indexed: 10/22/2022]
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Beneduce L, Spano G, Nabi AQ, Lamacchia F, Massa S, Aouni R, Hamama A. Occurrence and characterization of Escherichia coli O157 and other serotypes in raw meat products in Morocco. J Food Prot 2008; 71:2082-6. [PMID: 18939757 DOI: 10.4315/0362-028x-71.10.2082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, 100 raw meat samples were collected from 15 local Moroccan butcheries in five different areas of the city of Rabat during a period of 4 months. Overall, 7 of 15 butcheries from three areas of the city yielded strains of Escherichia coli O157. Single isolates from 9 (9%) of 100 raw meat samples were biochemically and serologically confirmed as E. coli O157. Using molecular techniques, two strains were positive for the Shiga toxin, with two additional strains containing an attaching-effacing gene. All potentially virulent serotypes isolated from these meat samples showed distinct pulsed-field gel electrophoresis profiles. Based on antibiotic susceptibility testing, more than 70% of the isolates were resistant to ampicillin and clavulanic acid-amoxicillin. Moreover, one strain was resistant to more than three antibiotics. Our study represents the first survey of E. coli O157 and related serotypes in raw meat products in Morocco.
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Affiliation(s)
- Luciano Beneduce
- Laboratory of Molecular Microbiology, Department of Food Sciences, University of Foggia, Via Napoli 25, 71100 Foggia, Italy.
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Solecki O, MacRae M, Ogden I, Strachan N. Can the high levels of human verocytotoxigenic Escherichia coli O157 infection in rural areas of NE Scotland be explained by consumption of contaminated meat? J Appl Microbiol 2007; 103:2616-21. [DOI: 10.1111/j.1365-2672.2007.03518.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Carney E, O'Brien SB, Sheridan JJ, McDowell DA, Blair IS, Duffy G. Prevalence and level of Escherichia coli O157 on beef trimmings, carcasses and boned head meat at a beef slaughter plant. Food Microbiol 2006; 23:52-9. [PMID: 16942986 DOI: 10.1016/j.fm.2004.12.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2004] [Accepted: 12/27/2004] [Indexed: 11/20/2022]
Abstract
This study investigated the prevalence and level of Escherichia coli O157 on samples of beef trimmings (n=1351), beef carcasses (n=132) and bovine head meat (n=132) in a beef slaughter plant in Ireland. The survey also included an assessment of the prevalence of virulence genes in the E. coli O157 isolates obtained. Samples were examined for the presence of E. coli O157 by direct plating on SMAC-CT and by enrichment/immunomagnetic separation (IMS) with plating of recovered immunobeads onto SMAC-CT agar. Presumptive E. coli O157 isolates were confirmed by PCR targeting a range of genes i.e. vt1, vt2, eaeA, hlyA, fliC(h7) and portions of the rfb (O-antigen encoding) region of E. coli O157. Enterobacteriaceae on head meat samples were estimated by direct plating onto Violet Red Bile Glucose agar. E. coli O157 was recovered from 2.4% (32/1351) of beef trimmings samples, at concentrations ranging from<0.70-1.61 log10 cfu g(-1). Of the 32 positive isolates, 31 contained the eaeA and hylA genes while 30/32 contained the fliC(h7) gene and 31/32 contained vt1 or vt2, or both vt genes. E. coli O157 was recovered from 3.0% (4/132) of carcass samples, at concentrations ranging from <0.70-1.41 log10 cfu g(-1). All of the carcass isolates contained the eaeA, hylA and fliC(h7) genes. E. coli O157 was recovered from 3.0% (3/100) of head meat samples, at concentrations of 0.7-1.0 log10 cfu g(-1). All of the head meat isolates contained the eaeA, hylA, fliC(h7) and vt2 genes. No head meat isolates contained the vt1 gene. Head meat samples (n=100) contained Enterobacteriaceae, at concentrations ranging from 0.70-3.0 log10 cfu g(-1). Overall, the qualitative and quantitative data obtained for E. coli O157 on beef trimming samples in this study could be employed as part of a quantitative risk assessment model.
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Affiliation(s)
- E Carney
- The National Food Centre, Dunsinea, Castleknock, Teagasc, Ashtown, Dublin 15, Ireland
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Prevalence of Shiga toxin-producing Escherichia coli in beef. Meat Sci 2005; 71:676-89. [DOI: 10.1016/j.meatsci.2005.05.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2005] [Revised: 05/12/2005] [Accepted: 05/12/2005] [Indexed: 01/28/2023]
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31
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Shao ZJ, Xu DZ, Yan YP, Li JH, Zhang JX, Zhang ZY, Pan BR. Detection of anti-HAV antibody with dot immunogold filtration assay. World J Gastroenterol 2003; 9:1508-11. [PMID: 12854152 PMCID: PMC4615493 DOI: 10.3748/wjg.v9.i7.1508] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To establish a rapid, sensitive and specific immunogold assay for detection of hepatitis A virus infection.
METHODS: Rabbit monoclonal antibodies to anti-human IgM and IgG (Dako) were dotted on a nitrocellulose membrane (NCM) respectively to capture the human sera IgM and IgG. Then the captured antibodies would conjugate to HAV antigen, which was revealed by mouse anti-HAV IgG conjugated to gold particles. Final results were assessed by blind method.
RESULTS: Sera from 96 patients with acute hepatitis were used for our study. Compared with well-recognized standard (Abbott Laboratory, USA), the sensitivity and specificity of IgM-DIGFA (self-made) were 91.3% (42/46) and 96.0% (48/50), and those of IgM-ELISA (Kehua, Shanghai) were 97.8% (45/46) and 100.0% (50/50). The identical results were produced from the study with reagents at different conditions, and the study was repeated in 15 negative sera and 10 positive sera. The serum anti-HAV IgG was tested with DIGFA at the same time. In comparison with ELISA, the sensitivity and specificity of DIGFA for IgG anti-HAV were 87.2% (41/47) and 91.8% (45/49), respectively.
CONCLUSION: This assay can detect anti-HAV IgM and IgG simultaneously, and be done within 3 min. The simplicity, rapidity and specificity of the assay were useful for screening and epidemiological study.
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Affiliation(s)
- Zhong-Jun Shao
- Department of Epidemiology, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
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