食品伙伴网讯   据欧盟食品安全局消息，为协助欧盟委员会开展生鲜牡蛎中诺瓦克病毒监测，3月4日欧盟食品安全局公布了相关的调查技术详述。

    调查的目的是判断牡蛎产地与销售点诺瓦克病毒的发生率，预期发生率为50%时，置信度为95%，精确度为5%。本次调查列出了目标数量、样本规格、样本收集需求、分析方法。

    部分原文报道如下：

    The European Commission requested scientific technical assistance in the preparation of a survey protocol for a European unio (EU) coordinated monitoring programme on the prevalence of norovirus (NoV) in raw oysters. The objective of the survey is to estimate the European prevalence of norovirus-contaminated oysters at production areas and batches of oysters at dispatch centres, with a 95% level of confidence and a level of precision of 5% considering an expected prevalence of 50%.

    原文链接：http://www.efsa.europa.eu/en/efsajournal/pub/4414