" it will knock out the foulest of cigar , beer breath within five seconds , " packes of norwalk , connecticut , told reuters on tuesday “它可以在5秒钟内将人从口腔呼出的最难闻的雪茄及啤酒的气味一扫而光” 。
This infection is caused by a group of viruses known as noroviruses , also known as " norwalk - like viruses " or small round structured viruses srsvs 诺沃克类病毒感染由诺沃克类病毒亦称为小圆结构病毒所引起。
Norwalk - like viruses infection norovirus em photo courtesy of virology division , public health laboratory branch , centre for health protection 诺沃克病毒电子显微镜相片鸣谢病毒部，公共生化验服务处，生防护中心提供相片
Norwalk - like virus infection is caused by a group of viruses known as norwalk - like viruses , also known as small round structured viruses ( srsvs ) 诺沃克类病毒感染是一种由诺沃克类病毒（亦称为小圆结构病毒）所引起的传染病。
Although food is an efficient means of transmitting these agents , norwalk and norwalk - like viruses can be transmitted via water and by person - to - person contact 诺瓦克和诺沃克类病毒可经水传播和人与人之间的接触传播，食品也是一个传播方式
In recent days , schools and healthcare institutions have been affected by an illness caused by the norwalk virus that leads to diarrhoea and vomiting 传染病近日又再成为新闻焦点，多所学校及医护机构受到诺沃克病毒的影响，引致多人腹泻呕吐。
Among the many waterborne disease - causing viruses are hepatitis a and norwalk ; the pathogenic protozoa include cryptosporidium , entamoeba and giardia 而主要的水媒病毒为a型肝炎病毒及诺华克病毒；会引起疾病的原生动物，则包括隐孢子虫、内阿米巴原虫、梨形鞭毛虫等。
However , infectious diseases such as sars and the norwalk virus cannot be stemmed by relying solely on the healthcare system and medical technology . personal and environmental hygiene are also of paramount importance 但是，像沙士或诺沃克病毒等的传染病并不能单靠医护系统及医疗科技应付，个人及环境?生同样重要。
