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da Silva VC, Elois M, Savi BP, Miotto M, De Dea Lindner J, Fongaro G, Souza DSM. Bioaccumulation Dynamic by Crassostrea gigas Oysters of Viruses That Are Proposed as Surrogates for Enteric Virus Contamination in Environmental Samples. FOOD AND ENVIRONMENTAL VIROLOGY 2023; 15:1-7. [PMID: 36287375 DOI: 10.1007/s12560-022-09538-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Oysters are filter-feeders and retain sewage-derived pathogens in their organs or tissues. Since most enteric viruses involved in outbreaks cannot grow in cell culture, studies using viral surrogate models are essential. Some species are proposed as surrogates for enteric viruses in environmental samples, including in bivalve mollusk samples, such as murine norovirus type 1 (MNV-1) and somatic (as φX) or F-specific coliphages (as MS2) bacteriophages. This study evaluated the tissue distribution of viral surrogates for enteric virus contamination after their bioaccumulation by Crassostrea gigas. Oyster tissues were analyzed for the distribution of viral surrogates (MNV-1, φX-174, and MS2) in digestive tissue (DT), gills (GL), and mantle (MT) after 4, 6, and 24 h of experimental bioaccumulation. MNV-1 had higher counts at 6 h in DT (1.2 × 103 PFU/g), followed by GL and MT (9.5 × 102 and 3.8 × 102 PFU/g, respectively). The bacteriophage φX-174 had a higher concentration in the MT at 4 and 6 h (3.0 × 102 PFU/g, in both) and MS2 in the GL after 24 h (2.2 × 102 PFU/g). The bioaccumulation pattern of MNV-1 by oysters was similar to the other enteric viruses (more in DT), while that of phages followed distinct patterns from these. Since the MNV-1 is bioaccumulated by C. gigas and is adapted to grow in cell culture, it is an important tool for bioaccumulation and viral inactivation tests in oysters. Although bacteriophage bioaccumulation was not similar to enteric viruses, they can be indicated for viral bioaccumulation analysis, analyzing MT and GL, since they do not bioaccumulate in DT.
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Affiliation(s)
- Vilaine Corrêa da Silva
- Applied Virology Laboratory, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Mariana Elois
- Applied Virology Laboratory, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Beatriz Pereira Savi
- Applied Virology Laboratory, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Marília Miotto
- Department of Food Science and Technology, UFSC, Florianópolis, SC, Brazil
| | | | - Gislaine Fongaro
- Applied Virology Laboratory, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Doris Sobral Marques Souza
- Applied Virology Laboratory, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
- Department of Food Science and Technology, UFSC, Florianópolis, SC, Brazil.
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Kim G, Park G, Kang S, Lee S, Park J, Ha J, Park K, Kang M, Cho M, Shin H. Applicability Evaluation of Male-Specific Coliphage-Based Detection Methods for Microbial Contamination Tracking. J Microbiol Biotechnol 2021; 31:1709-1715. [PMID: 34675140 PMCID: PMC9705999 DOI: 10.4014/jmb.2110.10003] [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: 10/06/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 12/15/2022]
Abstract
Outbreaks of food poisoning due to the consumption of norovirus-contaminated shellfish continue to occur. Male-specific (F+) coliphage has been suggested as an indicator of viral species due to the association with animal and human wastes. Here, we compared two methods, the double agar overlay and the quantitative real-time PCR (RT-PCR)-based method, for evaluating the applicability of F+ coliphage-based detection technique in microbial contamination tracking of shellfish samples. The RT-PCR-based method showed 1.6-39 times higher coliphage PFU values from spiked shellfish samples, in relation to the double agar overlay method. These differences indicated that the RT-PCR-based technique can detect both intact viruses and non-particle-protected viral DNA/RNA, suggesting that the RT-PCR based method could be a more efficient tool for tracking microbial contamination in shellfish. However, the virome information on F+ coliphage-contaminated oyster samples revealed that the high specificity of the RT-PCR- based method has a limitation in microbial contamination tracking due to the genomic diversity of F+ coliphages. Further research on the development of appropriate primer sets for microbial contamination tracking is therefore necessary. This study provides preliminary insight that should be examined in the search for suitable microbial contamination tracking methods to control the sanitation of shellfish and related seawater.
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Affiliation(s)
- Gyungcheon Kim
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Gwoncheol Park
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Seohyun Kang
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Sanghee Lee
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Jiyoung Park
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Jina Ha
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
| | - Kunbawui Park
- Food Safety and Processing Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Minseok Kang
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 54596, Republic of Korea
| | - Min Cho
- Division of Biotechnology, SELS Center, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan 54596, Republic of Korea,Corresponding authors M. Cho Phone: +82-63-850-0845 Fax: +82-63-850-0834 E-mail:
| | - Hakdong Shin
- Department of Food Science and Biotechnology, College of Life Science, Sejong University, Seoul 05006, Republic of Korea,
H. Shin Phone: +82-2-6935-2525 Fax: +82-2-3408-4319 E-mail:
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Cammarata RV, Barrios ME, Díaz SM, García López G, Fortunato MS, Torres C, Blanco Fernández MD, Mbayed VA. Assessment of Microbiological Quality of Fresh Vegetables and Oysters Produced in Buenos Aires Province, Argentina. FOOD AND ENVIRONMENTAL VIROLOGY 2021; 13:507-519. [PMID: 34449055 DOI: 10.1007/s12560-021-09496-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
Fresh vegetables and shellfish are prone to microbial contamination through irrigation or breeding with sewage-polluted waters, as well as by infected food handlers. In this work, we studied the presence of human and bovine polyomaviruses and human norovirus in fresh lettuces, strawberries and oysters produced in Buenos Aires province, Argentina. In oysters, we also investigated F-specific RNA bacteriophages, indicator Escherichia coli (E. coli) and pathogen bacteria of concern (Salmonella spp., Vibrio spp.). Within vegetables, we found viral contamination of human origin given the presence of human-associated polyomaviruses -MCPyV, HPyV6, JCPyV, and SV40- in lettuce and strawberry samples (16 and 10%, respectively), probably coming from irrigation waters and food handling. Among oysters, human (MCPyV, 4.2%) and bovine (BPyV1, 8.4%) polyomaviruses were detected even with low counts of E. coli. Bacteriophages (n = 3) and Salmonella spp. (n = 1) were also found, while Vibrio spp. was not detected. These results may indicate that the contamination in oysters comes from human and animal excreta, probably present in breeding waters. Norovirus was not detected in any food sample. To our knowledge, this is the first description of SV40 in lettuces and MCPyV and BPyV1 in oysters. The detection of different viral contaminants encourages further studies to evaluate the need for including viral indicators in microbiological standards. The identification of possible sources and routes of contamination using viral markers during routine microbiological controls, such as the polyomaviruses used in this work, would be useful to focus attention on the most hazardous stages of the food production chain.
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Affiliation(s)
- Robertina Viviana Cammarata
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425, Buenos Aires, Argentina
| | - Melina Elizabeth Barrios
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425, Buenos Aires, Argentina
| | - Sofía Micaela Díaz
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina
- Agencia Nacional de Promoción Científica y Tecnológica, Ministerio de Ciencia y Tecnología, Godoy Cruz 2370, 1425, Buenos Aires, Argentina
| | - Guadalupe García López
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Cátedra de Salud Pública e Higiene Ambiental, Junín 956, 1113, Buenos Aires, Argentina
| | - María Susana Fortunato
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Cátedra de Salud Pública e Higiene Ambiental, Junín 956, 1113, Buenos Aires, Argentina
| | - Carolina Torres
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425, Buenos Aires, Argentina
| | - María Dolores Blanco Fernández
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425, Buenos Aires, Argentina
| | - Viviana Andrea Mbayed
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Instituto de Investigaciones en Bacteriología y Virología Molecular (IBaViM), Junín 956, 1113, Buenos Aires, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, 1425, Buenos Aires, Argentina.
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Vasquez-García A, Mejia-Ballesteros JE, de Godoy SHS, Barbieri E, de Sousa RLM, Fernandes AM. Norovirus GII and astrovirus in shellfish from a mangrove region in Cananéia, Brazil: molecular detection and characterization. Braz J Microbiol 2021; 53:317-326. [PMID: 34661887 DOI: 10.1007/s42770-021-00631-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 10/07/2021] [Indexed: 11/29/2022] Open
Abstract
In recent years, annual cases of gastroenteritis have been reported in the world at high rates, suggesting an association with the consumption of shellfish with enteric viruses in their tissues. Anthropic activities are considered a source of environmental pollution and the main responsible for contamination by pathogenic microorganisms in aquatic environments. The objective of this study was to evaluate, by RT-semi-nested PCR, the presence of astrovirus (AstV) and norovirus genogroup II (NoV GII) in mussels (Mytella falcata) and oysters (Crassostrea brasiliana) collected in two sites of the Lagunar Complex of Cananéia, State of São Paulo, Brazil. A total of 150 samples of mussels and oysters (75 samples each) were analyzed. AstV was not identified in any shellfish sample. NoV GII was detected in 21 samples (14%), 8 mussel samples (38%), and 13 oyster samples (62%). From the 21 positive samples, 16 were analyzed by nucleotide sequencing. The molecular characterization revealed that Brazilian samples were grouped into clades along with other sequences from Brazil, Japan, and Mexico. There was 93.8-100% amino acid sequence similarity among the samples in this study and > 94.9% when compared with the strains isolated from clinical cases in Brazil. The screening of shellfish for the presence of health-significant enteric viruses can help prevent outbreaks among consumers and contribute to the improvement of the estuarine environment.
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Affiliation(s)
- Andrea Vasquez-García
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP, 13635-900, Brazil.,Escuela de Ciencias Básicas Tecnología E Ingeniería, Universidad Nacional Abierta Y a Distancia, 763532, Palmira, Colombia
| | - Julian Eduardo Mejia-Ballesteros
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP, 13635-900, Brazil.,Escuela de Ciencias Agrarias Pecuarias Y del Medio Ambiente,, Universidad Nacional Abierta Y a Distancia, 763532, Palmira, Colombia
| | - Silvia Helena Seraphin de Godoy
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP, 13635-900, Brazil
| | - Edison Barbieri
- Instituto de Pesca - APTA-SAA/SP. Prof, Besnard s/n, Cananéia, SP, 11990-000, Brazil
| | - Ricardo Luiz Moro de Sousa
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP, 13635-900, Brazil
| | - Andrezza Maria Fernandes
- Faculdade de Zootecnia E Engenharia de Alimentos, Universidade de São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP, 13635-900, Brazil.
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Bio S, Nunes B. Twists and turns of an oyster's life: effects of different depuration periods on physiological biochemical functions of oysters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29601-29614. [PMID: 33559825 DOI: 10.1007/s11356-021-12683-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Aquaculture activities are often established in the vicinity of highly populated, potentially contaminated areas. Animals cultured at such locations, namely bivalves, are frequently used as test organisms in ecotoxicological testing. In this case, a period of depuration is required to allow the normalization of physiological processes, which are likely to be altered after exposure to a multiplicity of waterborne contaminants occurring in the wild. One of the most important species in modern marine aquaculture is the oyster species Crassostrea gigas. The aim of this study was to assess if the current depuration time frame of 24 h (adopted by most aquaculture facilities), is long enough to permit oysters to revert potential toxic effects exerted by environmental contaminants, allowing their use in laboratory-based ecotoxicological studies. The selected approach involved the monitoring of biochemical (antioxidant defence, oxidative damage, phase II metabolism, and neurological homeostasis) and physiological (condition index) parameters, along a period of 42 days. The obtained results showed that a period of 24 h does not revert any of the potential toxic effects caused by environmental contaminants to which animals may have been previously subjected; even a period of 42 days was not long enough for the oysters to completely normalize the levels of their antioxidant defences, namely total GPx activity, which increased over time. Lipid peroxidation was also increased during the depuration period, and the activity of the metabolic isoenzymes GSTs was significantly decreased. Furthermore, AChE activity measured in the adductor muscle of oysters was increased over time. These assumptions suggest that a period of depuration longer than 24 h is mandatory to obtain adequate test organisms of this oyster species, to be used for ecotoxicological testing purposes.
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Affiliation(s)
- Sofia Bio
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar (CESAM), Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
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Performance evaluation of ultra violet assisted vertical re-circulating depuration system on microbial, heavy metal reduction and composition of black clam (Villorita cyprinoides). Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sarmento SK, Guerra CR, Malta FC, Coutinho R, Miagostovich MP, Fumian TM. Human norovirus detection in bivalve shellfish in Brazil and evaluation of viral infectivity using PMA treatment. MARINE POLLUTION BULLETIN 2020; 157:111315. [PMID: 32658680 DOI: 10.1016/j.marpolbul.2020.111315] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
Noroviruses are the most common cause of gastroenteritis outbreaks in humans and bivalve shellfish consumption is a recognized route of infection. Our aim was to detect and characterize norovirus in bivalves from a coastal city of Brazil. Nucleic acid was extracted from the bivalve's digestive tissue concentrates using magnetic beads. From March 2018 to June 2019, 77 samples were screened using quantitative RT-PCR. Noroviruses were detected in 41.5%, with the GII being the most prevalent (37.7%). The highest viral load was 3.5 × 106 and 2.5 × 105 GC/g in oysters and mussels, respectively. PMA-treatment demonstrated that a large fraction of the detected norovirus corresponded to non-infectious particles. Genetic characterization showed the circulation of the GII.2[P16] and GII.4[P4] genotypes. Norovirus detection in bivalves reflects the anthropogenic impact on marine environment and serves as an early warning for the food-borne disease outbreaks resulting from the consumption of contaminated molluscs.
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Affiliation(s)
- Sylvia Kahwage Sarmento
- Laboratório de Virologia Comparada e Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ CEP 21045-900, Brazil
| | - Caroline Rezende Guerra
- Laboratório de Genética Marinha, Departamento de Biotecnologia Marinha, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo , RJ CEP 28930-000, Brazil
| | - Fábio Correia Malta
- Laboratório de Virologia Comparada e Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ CEP 21045-900, Brazil
| | - Ricardo Coutinho
- Laboratório de Genética Marinha, Departamento de Biotecnologia Marinha, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo , RJ CEP 28930-000, Brazil
| | - Marize Pereira Miagostovich
- Laboratório de Virologia Comparada e Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ CEP 21045-900, Brazil
| | - Tulio Machado Fumian
- Laboratório de Virologia Comparada e Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ CEP 21045-900, Brazil.
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Park H, Jung S, Shin H, Ha SD, Park TJ, Park JP, Seo DJ, Choi C. Localization and persistence of hepatitis A virus in artificially contaminated oysters. Int J Food Microbiol 2019; 299:58-63. [PMID: 30954876 DOI: 10.1016/j.ijfoodmicro.2019.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 03/16/2019] [Accepted: 03/27/2019] [Indexed: 11/26/2022]
Abstract
Bivalve molluscan shellfish, such as oysters, clams, and cockles, are well-recognized as vectors that concentrate foodborne pathogens by filter feeding. The objective of this study was to investigate the distribution and persistence of hepatitis A virus (HAV) in experimentally contaminated oysters that were either fed or not fed with algae. Oysters were experimentally contaminated with HAV and maintained in depuration conditions. qRT-PCR, immunohistochemistry (IHC), and in situ hybridization (ISH) were performed on oyster samples collected at 0, 1, 3, 5, and 7 days post-inoculation. When HAV-contaminated oysters were depurated for 7 days, HAV was detected in 91.1-97.8% of the digestive glands and gills. While the high viral load in the digestive glands in oysters did not change significantly regardless of algae-feeding, the viral load of the gills gradually decreased in both groups during the depuration. HAV antigen and RNA were detected in the digestive diverticula and connective tissues by both IHC and ISH. HAV was detected in the stomach, intestine, and gills by only ISH. The distribution of HAV in various oyster tissues may explain the persistence of contamination in oysters during the depuration process.
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Affiliation(s)
- Hyunkyung Park
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Soontag Jung
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Hansaem Shin
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Sang-Do Ha
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jong Pil Park
- Department of Pharmaceutical Engineering, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Dong Joo Seo
- Department of Food and Nutrition, Gwangju University, Gwangju 61743, Republic of Korea
| | - Changsun Choi
- Department of Food and Nutrition, Chung-Ang University, Anseong 17546, Republic of Korea.
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Noda M. Current Status of Norovirus Food Poisoning Related to Bivalve Mollusk and Its Control Measures. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2018; 58:12-25. [PMID: 28260728 DOI: 10.3358/shokueishi.58.12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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McMenemy P, Kleczkowski A, Lees DN, Lowther J, Taylor N. A model for estimating pathogen variability in shellfish and predicting minimum depuration times. PLoS One 2018. [PMID: 29513747 PMCID: PMC5841822 DOI: 10.1371/journal.pone.0193865] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Norovirus is a major cause of viral gastroenteritis, with shellfish consumption being identified as one potential norovirus entry point into the human population. Minimising shellfish norovirus levels is therefore important for both the consumer’s protection and the shellfish industry’s reputation. One method used to reduce microbiological risks in shellfish is depuration; however, this process also presents additional costs to industry. Providing a mechanism to estimate norovirus levels during depuration would therefore be useful to stakeholders. This paper presents a mathematical model of the depuration process and its impact on norovirus levels found in shellfish. Two fundamental stages of norovirus depuration are considered: (i) the initial distribution of norovirus loads within a shellfish population and (ii) the way in which the initial norovirus loads evolve during depuration. Realistic assumptions are made about the dynamics of norovirus during depuration, and mathematical descriptions of both stages are derived and combined into a single model. Parameters to describe the depuration effect and norovirus load values are derived from existing norovirus data obtained from U.K. harvest sites. However, obtaining population estimates of norovirus variability is time-consuming and expensive; this model addresses the issue by assuming a ‘worst case scenario’ for variability of pathogens, which is independent of mean pathogen levels. The model is then used to predict minimum depuration times required to achieve norovirus levels which fall within possible risk management levels, as well as predictions of minimum depuration times for other water-borne pathogens found in shellfish. Times for Escherichia coli predicted by the model all fall within the minimum 42 hours required for class B harvest sites, whereas minimum depuration times for norovirus and FRNA+ bacteriophage are substantially longer. Thus this study provides relevant information and tools to assist norovirus risk managers with future control strategies.
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Affiliation(s)
- Paul McMenemy
- Computing Science and Mathematics, Faculty of Natural Sciences, University of Stirling, United Kingdom
- Epidemiology Team, CEFAS, Weymouth, United Kingdom
- * E-mail:
| | - Adam Kleczkowski
- Computing Science and Mathematics, Faculty of Natural Sciences, University of Stirling, United Kingdom
| | | | | | - Nick Taylor
- Epidemiology Team, CEFAS, Weymouth, United Kingdom
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Thermal Inactivation of Enteric Viruses and Bioaccumulation of Enteric Foodborne Viruses in Live Oysters (Crassostrea virginica). Appl Environ Microbiol 2016; 82:2086-99. [PMID: 26826225 DOI: 10.1128/aem.03573-15] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/18/2016] [Indexed: 12/30/2022] Open
Abstract
Human enteric viruses are among the main causative agents of shellfish-associated outbreaks. In this study, the kinetics of viral bioaccumulation in live oysters and the heat stabilities of the predominant enteric viruses were determined both in tissue culture and in oyster tissues. A human norovirus (HuNoV) GII.4 strain, HuNoV surrogates (murine norovirus [MNV-1], Tulane virus [TV]), hepatitis A virus (HAV), and human rotavirus (RV) bioaccumulated to high titers within oyster tissues, with different patterns of bioaccumulation for the different viruses. We tested the thermal stability of each virus at 62, 72, and 80°C in culture medium. The viruses can be ranked from the most heat resistant to the least stable as follows: HAV, RV, TV, MNV-1. In addition, we found that oyster tissues provided protection to the viruses during heat treatment. To decipher the mechanism underlying viral inactivation by heat, purified TV was treated at 80°C for increasing time intervals. It was found that the integrity of the viral capsid was disrupted, whereas viral genomic RNA remained intact. Interestingly, heat treatment leading to complete loss of TV infectivity was not sufficient to completely disrupt the receptor binding activity of TV, as determined by the porcine gastric mucin-magnetic bead binding assay. Similarly, HuNoV virus-like particles (VLPs) and a HuNoV GII.4 strain retained some receptor binding ability following heat treatment. Although foodborne viruses have variable heat stability, 80°C for >6 min was sufficient to completely inactivate enteric viruses in oysters, with the exception of HAV.
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12
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Sánchez G. Processing Strategies to Inactivate Hepatitis A Virus in Food Products: A Critical Review. Compr Rev Food Sci Food Saf 2015. [DOI: 10.1111/1541-4337.12154] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Gloria Sánchez
- Dept. of Microbiology and Ecology; Univ. of Valencia, Dr. Moliner; 50. Burjassot Valencia Spain
- Inst. of Agrochemistry and Food Technology (IATA); Spanish Council for Scientific Research (CSIC); Agustín Escardino, 7. Paterna Valencia Spain
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Andrade KR, Boratto PPVM, Rodrigues FP, Silva LCF, Dornas FP, Pilotto MR, La Scola B, Almeida GMF, Kroon EG, Abrahão JS. Oysters as hot spots for mimivirus isolation. Arch Virol 2014; 160:477-82. [PMID: 25344898 DOI: 10.1007/s00705-014-2257-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 10/11/2014] [Indexed: 11/27/2022]
Abstract
Viruses are ubiquitous organisms, but their role in the ecosystem and their prevalence are still poorly understood. Mimiviruses are extremely complex and large DNA viruses. Although metagenomic studies have suggested that members of the family Mimiviridae are abundant in oceans, there is a lack of information about the association of mimiviruses with marine organisms. In this work, we demonstrate by molecular and virological methods that oysters are excellent sources for mimiviruses isolation. Our data not only provide new information about the biology of these viruses but also raise questions regarding the role of oyster consumption as a putative source of mimivirus infection in humans.
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Affiliation(s)
- Kétyllen R Andrade
- Laboratório de Vírus, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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14
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Rodriguez-Manzano J, Hundesa A, Calgua B, Carratala A, Maluquer de Motes C, Rusiñol M, Moresco V, Ramos AP, Martínez-Marca F, Calvo M, Monte Barardi CR, Girones R, Bofill-Mas S. Adenovirus and Norovirus Contaminants in Commercially Distributed Shellfish. FOOD AND ENVIRONMENTAL VIROLOGY 2014; 6:31-41. [PMID: 24293153 DOI: 10.1007/s12560-013-9133-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Accepted: 11/12/2013] [Indexed: 05/22/2023]
Abstract
Shellfish complying with European Regulations based on quantification of fecal bacterial indicators (FIB) are introduced into markets; however, information on viruses, more stable than FIB, is not available in the literature. To assess the presence of noroviruses (NoVs) GI and GII and human adenoviruses (HAdV) in domestic and imported mussels and clams (n = 151) their presence was analyzed during winter seasons (2004-2008) in north-west Spanish markets through a routine surveillance system. All samples tested negative for NoV GI and 13 % were positive for NoV GII. The role of HAdV as viral indicator was evaluated in 20 negative and 10 positive NoV GII samples showing an estimated sensitivity and specificity of HAdV to predict the presence of NoV GII of 100 and 74 % (cut-off 0.5). The levels of HAdV and NoVs and the efficiency of decontamination in shellfish depuration plants (SDP) were evaluated analyzing pre- and post-depurated mussels collected in May-June 2010 from three different SDP. There were no statistically significant differences in the prevalence and quantification of HAdV between pre- and post-depurated shellfish and between seawater entering and leaving the depuration systems. Moreover, infectious HAdV were detected in depurated mussels. These results confirm previous studies showing that current controls and depuration treatments limiting the number of FIB do not guarantee the absence of viruses in shellfish.
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Affiliation(s)
- Jesus Rodriguez-Manzano
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Ayalkibet Hundesa
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Byron Calgua
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Anna Carratala
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Carlos Maluquer de Motes
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Marta Rusiñol
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
| | - Vanessa Moresco
- Laboratory of Applied Virology, Microbiology, Inmunology and Parasitology, CCB, Federal Santa Catarina University (UFSC), Florianópolis, Brazil
| | - Ana Paula Ramos
- Laboratory of Applied Virology, Microbiology, Inmunology and Parasitology, CCB, Federal Santa Catarina University (UFSC), Florianópolis, Brazil
| | | | - Miquel Calvo
- Department of Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Celia Regina Monte Barardi
- Laboratory of Applied Virology, Microbiology, Inmunology and Parasitology, CCB, Federal Santa Catarina University (UFSC), Florianópolis, Brazil
| | - Rosina Girones
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain.
| | - Sílvia Bofill-Mas
- Department of Microbiology, Faculty of Biology, University of Barcelona, Diagonal Ave., 643, 08028, Barcelona, Spain
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15
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Souza DSM, Piazza RS, Pilotto MR, Nascimento MDAD, Moresco V, Taniguchi S, Leal DAG, Schmidt ÉC, Cargin-Ferreira E, Bícego MC, Sasaki ST, Montone RC, de Araujo RA, Franco RMB, Bouzon ZL, Bainy ACD, Barardi CRM. Virus, protozoa and organic compounds decay in depurated oysters. Int J Food Microbiol 2013; 167:337-45. [DOI: 10.1016/j.ijfoodmicro.2013.09.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Revised: 09/24/2013] [Accepted: 09/26/2013] [Indexed: 11/17/2022]
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