Conclusion healthy norwalk virus carriers were present in school canteen workers in meixian and could be the hidden risk of norwalk virus gastroenteritis outbreak .
结论梅县学校食堂厨工存在诺瓦克病毒健康携带者,学校有爆发诺瓦克病毒胃肠炎的潜在危险。
According to reports , norwalk virus can infect people of all ages , the incubation period of 24 hours to 48 hours .
据介绍，诺瓦克病毒可以感染各个年龄段人群，潜伏期为24小时至48小时。
This article introduces the research progress of norwalk viruses , including the pathogeny , epidemiology and prevention countermeasures .
