搜索关注在线英语听力室公众号:tingroom,领取免费英语资料大礼包。
(单词翻译)
This is Scientific American’s 60-Second Science. I’m Karen Hopkin. This will just take a minute.
It’s graduation season. And some scientists got to wondering whether the folks who shake hundreds of hands while passing out diplomas run the risk of coming away with a fistful of infectious1 microbes, such as Staphylococcus aureus. Good news—turns out the risk of being passed a disease-causing bacterium2 while pressing the flesh is pretty remote. That’s according to a study in the Journal of School Nursing.
The researchers swabbed the palms of 14 school officials before and after graduation. They found that before the ceremony, and even after a slathering of sanitizer, hands were home to plenty of nonharmful bacteria. On the infectious scorecard, one dean3 brought Staph aureus to a commencement. Two others at a different ceremony walked away with it. And one of those samples came from a left hand, which didn’t participate in any of the meeting-or-greeting. So the math says that of more than 5,000 handshakes, just one may have passed along something less welcome than a sheepskin.
So if you’re graduating this spring, feel free to shake hands, while you wonder if the last person who wore that robe had anything contagious4.
Thanks for the minute. For Scientific American’s 60-Second Science, I’m Karen Hopkin.
1 infectious | |
adj.传染的,有传染性的,有感染力的 | |
参考例句: |
|
|
2 bacterium | |
n.(pl.)bacteria 细菌 | |
参考例句: |
|
|
3 Dean | |
n.(大学)院长,系主任,教务长 | |
参考例句: |
|
|
4 contagious | |
adj.传染性的,有感染力的 | |
参考例句: |
|
|
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎 点击提交 分享给大家。