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High Predictive Power of Meat Juice Serology on the Presence of Hepatitis E Virus in Slaughter Pigs.
Foodborne Pathogens and Disease ( IF 1.9 ) Pub Date : 2020-11-06 , DOI: 10.1089/fpd.2020.2797
Janine Dzierzon 1 , Verena Oswaldi 1 , Roswitha Merle 2 , Nina Langkabel 1 , Diana Meemken 1
Affiliation  

Hepatitis E virus (HEV) as a zoonotic agent can be responsible for an acute hepatitis in humans, which is usually self-limiting. Progression toward a chronic stage is possible, especially in immunocompromised patients. In the past decade, the number of hepatitis E cases in humans in Germany has increased enormously to 3491 cases in 2018. Domestic pigs have been identified as a main animal reservoir and the consumption of raw and undercooked pork products, that is, livers or liver products, meat or meat products, is known as a potential risk of foodborne HEV infection. The aim of this study was to determine whether serological tests are appropriate to predict the occurrence of HEV in the liver and muscle of domestic pigs in Germany. In 2018, samples of meat juice, liver, and ham muscle were collected from 250 fattening pigs at an abattoir in North West Germany. Samples were analyzed for the presence of HEV antibodies using enzyme-linked immunosorbent assay respectively for the presence of HEV RNA using real-time reverse transcription–polymerase chain reaction. In total, 62% (155/250) of the meat juice samples were positive for HEV antibodies at a single animal basis. At herd level, 72% (18/25) of the herds were seropositive. The HEV prevalence in the liver was 17.2% (43/250). Each positive liver sample originated from seropositive herds respectively from HEV seropositive pigs. This study demonstrates for the first time the significant correlation between a positive HEV serology and the occurrence of HEV RNA in the liver of slaughter pigs (χ2 = 31.83; p < 0.001), highlighting the significant predictive power of positive serological results on the occurrence of HEV RNA in the liver.

中文翻译:

肉汁血清学对屠宰猪中戊型肝炎病毒存在的高预测能力。

戊型肝炎病毒 (HEV) 作为一种人畜共患病原体可导致人类急性肝炎,这通常是自限性的。进展到慢性阶段是可能的,特别是在免疫功能低下的患者中。过去十年间,德国人类戊型肝炎病例数大幅增加至 2018 年的 3491 例。 家猪已被确定为主要动物宿主,食用生的和未煮熟的猪肉制品,即肝脏或肝脏肉类或肉制品,被称为食源性 HEV 感染的潜在风险。本研究的目的是确定血清学检测是否适合预测德国家猪肝脏和肌肉中 HEV 的发生。2018年肉汁、肝脏、和火腿肌肉是从德国西北部屠宰场的 250 头育肥猪中收集的。分别使用酶联免疫吸附测定法分析样品中 HEV 抗体的存在,使用实时逆转录-聚合酶链反应检测 HEV RNA 的存在。在单一动物基础上,总共 62% (155/250) 的肉汁样品对 HEV 抗体呈阳性。在畜群水平,72% (18/25) 的畜群呈血清阳性。肝脏中的 HEV 流行率为 17.2% (43/250)。每个阳性肝脏样品分别来自血清阳性猪群,分别来自 HEV 血清阳性猪。该研究首次证明了 HEV 血清学阳性与屠宰猪肝脏中 HEV RNA 的发生之间存在显着相关性。分别使用酶联免疫吸附测定法分析样品中 HEV 抗体的存在,使用实时逆转录-聚合酶链反应检测 HEV RNA 的存在。在单一动物基础上,总共 62% (155/250) 的肉汁样品对 HEV 抗体呈阳性。在畜群水平,72% (18/25) 的畜群呈血清阳性。肝脏中的 HEV 流行率为 17.2% (43/250)。每个阳性肝脏样品分别来自血清阳性猪群,分别来自 HEV 血清阳性猪。该研究首次证明了 HEV 血清学阳性与屠宰猪肝脏中 HEV RNA 的发生之间存在显着相关性。分别使用酶联免疫吸附测定法分析样品中 HEV 抗体的存在,使用实时逆转录-聚合酶链反应检测 HEV RNA 的存在。在单一动物基础上,总共 62% (155/250) 的肉汁样品对 HEV 抗体呈阳性。在畜群水平,72% (18/25) 的畜群呈血清阳性。肝脏中的 HEV 流行率为 17.2% (43/250)。每个阳性肝脏样品分别来自血清阳性猪群,分别来自 HEV 血清阳性猪。该研究首次证明了 HEV 血清学阳性与屠宰猪肝脏中 HEV RNA 的发生之间存在显着相关性。在单一动物基础上,62% (155/250) 的肉汁样品的 HEV 抗体呈阳性。在畜群水平,72% (18/25) 的畜群呈血清阳性。肝脏中的 HEV 流行率为 17.2% (43/250)。每个阳性肝脏样品分别来自血清阳性猪群,分别来自 HEV 血清阳性猪。该研究首次证明了 HEV 血清学阳性与屠宰猪肝脏中 HEV RNA 的发生之间存在显着相关性。在单一动物基础上,62% (155/250) 的肉汁样品的 HEV 抗体呈阳性。在畜群水平,72% (18/25) 的畜群呈血清阳性。肝脏中的 HEV 流行率为 17.2% (43/250)。每个阳性肝脏样品分别来自血清阳性猪群,分别来自 HEV 血清阳性猪。该研究首次证明了 HEV 血清学阳性与屠宰猪肝脏中 HEV RNA 的发生之间存在显着相关性。χ 2  = 31.83;p  < 0.001),突出了阳性血清学结果对肝脏中 HEV RNA 发生的显着预测能力。
更新日期:2020-11-12
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