由于病毒学技术进展及对食物进行病毒学监测,证明许多食物可因多种原因被病毒污染,成为人类病毒性疾病发生和流行的一个重要原因。例如,1979年澳大利亚报告一起由牡蛎引起的病毒性胃肠炎流行,病例超过2000人。SOURS等报道,美国疾病控制中心收集到29起由食物引起的甲型肝炎暴 Due to advances in virology and virological monitoring of food, many foods have proven to be contaminated with viruses for many reasons and have become an important cause of the occurrence and prevalence of viral diseases in humans. For example, in 1979 Australia reported a prevalence of viral gastroenteritis caused by oysters, with more than 2,000 cases. SOURS and other reports, the U.S. Centers for Disease Control collected 29 food-borne hepatitis A