First story this Wednesday: sickness has swept over dozens of people working on the 2018 Winter Olympics. But it's not the nasty flu virus you've heard about. What hospitalized 41 security guards in Pyeongchang, South Korea, is norovirus.
Olympics organizers say they suddenly started showing symptoms on Sunday. Officials don't know exactly how the security guards got infected, but the Korean Center for Disease Control and Prevention says they've all been staying at the same building. Organizers are testing the water and food where the security guards are staying and they're checking to make sure their bedrooms are virus free.
All of those who'd caught norovirus are stable. But in order to help contain the disease, a total of 1,200 security guards had to be taken off duty. This would have had a significant impact on security for the games, so South Korea deployed 900 members of its military to help keep the event safe. They'll be doing the security checks at 20 of the venues where events are held.
Though the opening ceremonies are scheduled for Friday, the first events will actually start the day before. So, health officials want to get a handle on this before it has the chance to spread to athletes, trainers, coaches and tourists.
ELIZABETH COHEN, CNN SENIOR MEDICAL CORRESPONDENT: Norovirus is one of the most contagious bugs out there.
SUBTITLE: How viral is norovirus?
COHEN: The amount of norovirus that can fit on the head of a pen can get a thousand people sick. About 20 million people a year get sick from norovirus in the United States. Eight hundred people die, about 60,000 end up in the hospital.
Norovirus is the number one cause of food poisoning outbreaks in the United States. Infected food workers, they're responsible for about 70 percent of the norovirus outbreaks in this country.
When people get norovirus, they get vomiting and diarrhea, sometimes it's pretty vicious. Another reason norovirus is so powerful is it can stay on your countertops for up to two weeks and many common disinfectants and cleaners just don't work against it.
So, you can fight norovirus. First of all, wash your hands thoroughly with soap and water. Sanitizers just isn't going to cut it.
Also, avoid touching foods with your bare hands. Use silverware as much as you can. And if you do feel sick, don't prepare foods for other people.
冬奥会组织者表示，那些安保人员在周日突然开始出现症状 。目前官员无法确定这些安保人员是如何被感染的，但是韩国疾病预防控制中心表示，感染者已被安排居住在一个隔离场所中 。组织者将对安保人员所住地的食物和水进行检测，他们还会确保居住地的卧室没有病毒 。
目前所有诺如病毒感染者均病情稳定 。但是为了帮助控制疾病，1200名安保人员被撤离工作岗位 。这将会对冬奥会的安保产生严重影响，因此韩国调配了900名军人，确保冬奥会的安全 。他们将对冬奥会的20个场馆进行安全检查 。
虽然冬奥会开幕式定在周五，但是首项赛事将于开幕式前一天展开 。因此，卫生官员希望在病毒扩散至运动员、训练师、教练和游客前将其控制住 。
科恩：仅钢笔笔尖大小的诺如病毒就能让1000人感染 。美国每年有约2000万人感染诺如病毒 。其中800人死亡，约6万人住院治疗 。
诺如病毒是美国爆发食物中毒的首要原因 。受感染的食品工作者引发了美国70%的诺如病毒疫情 。
人们感染诺如病毒以后，会出现呕吐和腹泻的症状，有时情况会非常危险 。诺如病毒如此强大的另一个原因是，它可以一直附着在厨房工作台上两周的时间，许多常用消毒剂和清洁剂对该病毒无效 。
你可以对抗诺如病毒 。首先，用肥皂和流水彻底洗手 。洗手液并不能清除病毒 。
另外，避免直接用手触摸食物 。尽量使用银制餐具 。如果你感觉不舒服，不要为其他人做饭 。
1. in order to 为了；以便；目的在于；
例句：They have to have a basic understanding of computers in order to use the advanced technology.
2. end up 最终；结果；到头来；
例句：If he mistreats his wife like this, he will end up in prison first or last.
3. be responsible for 负有责任的；应承担责任的；
例句：He could never quite put his finger on who or what was responsible for all this.
4. first of all 首先；
例句：I wish to thank you, first of all, for holding this party for me.