Preliminary Quantitative Risk Assessment of Norovirus in Shellfish in the Yellow Sea and Bohai Sea of China

Zhao, Feng; Ding, Guoying; Wang, Shanshan; Cai, Yiyang; Xu, Jie; Cheng, Jingye; Zhou, Dun-Jin

doi:10.1089/fpd.2021.0002

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…The higher accumulation performance has also been described by Suffredini and collaborators [115]. In China, in shellfish at retail (species included Crassostrea gigas, Mytilus edulis, Azumapecten farreri, Sinonovacula constricta, Scapharca subcrenata, and Ruditapes philippinarum), the quantity range was between 1.9 copies/g shellfish meat to 7.94 × 10 5 copies/g shellfish meat [116]. Nevertheless, a study comparison is affected by the absence of standardization, namely, a geometric or a mathematic mean is arbitrarily applied, as well as the use of log transformation.…”

Section: Hazard Identificationsupporting

confidence: 57%

Assessment of the Impact on Human Health of the Presence of Norovirus in Bivalve Molluscs: What Data Do We Miss?

Savini

Giacometti

Tomasello

et al. 2021

Foods

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In the latest One Health ECDC EFSA technical report, Norovirus in fish and fishery products have been listed as the agent/food pair causing the highest number of strong-evidence outbreaks in the EU in 2019. This review aims to identify data gaps that must be filled in order to increase knowledge on Norovirus in bivalve molluscs, perform a risk assessment and rank the key mitigation strategies for this biological hazard, which is relevant to public health. Virologic determinations are not included in any of the food safety and process hygiene microbiologic criteria reflected in the current European regulations. In addition, the Escherichia coli-based indices of acceptable faecal contamination for primary production, as well as the food safety criteria, do not appear sufficient to indicate the extent of Norovirus contamination. The qualitative risk assessment data collected in this review suggests that bivalve molluscs present a high risk to human health for Norovirus only when consumed raw or when insufficiently cooked. On the contrary, the risk can be considered negligible when they are cooked at a high temperature, while information is still scarce for non-thermal treatments.

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Section: Hazard Identificationsupporting

confidence: 57%

Assessment of the Impact on Human Health of the Presence of Norovirus in Bivalve Molluscs: What Data Do We Miss?

Savini

Giacometti

Tomasello

et al. 2021

Foods

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show abstract

“…The average intake of shellfish per capita referred to the GEMS/Food published by WHO and the area where China was located (region G: Southeast Asia). The formula of shellfish consumption model [ 23 , 24 ]:

P detect indicates the detection rate of each foodborne virus in shellfish, D meal represents the amounts of shellfish consumed per meal (g), V copies denotes shellfish viral load (copies/g), and P heat represents the rate of virus reduction in shellfish after cooking.…”

Section: Methodsmentioning

confidence: 99%

Section: Hazard Identificationmentioning

confidence: 99%

“…The following supporting information can be downloaded at: , Figure S1: specificity of detection for the multiplex qPCR method. Table S1: table of six shellfish collection samples; Table S2: shellfish intake and frequency in the population; Table S3: the virus infection risk classification matrix; Table S4: detection limit results of the single- and multiplex qPCR; Table S5: repeatability test of the multiplex qPCR; Table S6: number of shellfish samples with multiple viruses detected [ 23 , 35 , 51 ].…”

mentioning

confidence: 99%

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Quantitative Risk Assessment of Five Foodborne Viruses in Shellfish Based on Multiplex qPCR

Yu,

Xu,

Chen

et al. 2023

Foods

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Foodborne diseases are currently the most critical food safety issue in the world. There are not many hazard identification and exposure assessments for foodborne viruses (Norovirus GI, GII, Hepatitis A Virus, Rotavirus, Adenovirus) in shellfish. Multiplex qPCR for the simultaneous detection of five foodborne viruses was established and used to assess infection risk based on a 1-year pathogenesis study. The sensitivity, specificity and reproducibility of the multiplex qPCR method are consistent with that of conventional qPCR, which saves more time and effort. Overall, 37.86% of shellfish samples had one or more foodborne viruses. Risk assessment formulae and matrices were used to develop risk assessments for different age groups, different seasons and different shellfish. The annual probability of contracting a foodborne virus infection from shellfish is greater than 1.6 × 10−1 for all populations, and even for infants aged 0–4 years, it is greater than 1.5 × 10−2, which is much higher than the risk thresholds recommended by WHO (10−6) and the US EPA (10−4). High risk (level IV) is associated with springtime, and medium risk (level III) is associated with Mussel consumption. This study provides a basis for the risk of foodborne viral infections in people of different ages, in different seasons, and by consuming different shellfish.

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A quantitative exposure assessment model for norovirus in oysters harvested from a classified production area

Hunt

Doré

Keaveney

et al. 2023

Microbial Risk Analysis

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Preliminary Quantitative Risk Assessment of Norovirus in Shellfish in the Yellow Sea and Bohai Sea of China

Cited by 3 publications

References 24 publications

Assessment of the Impact on Human Health of the Presence of Norovirus in Bivalve Molluscs: What Data Do We Miss?

Assessment of the Impact on Human Health of the Presence of Norovirus in Bivalve Molluscs: What Data Do We Miss?

Quantitative Risk Assessment of Five Foodborne Viruses in Shellfish Based on Multiplex qPCR

A quantitative exposure assessment model for norovirus in oysters harvested from a classified production area

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