首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
The Flu Virus Can not Be Foreseen There is a joke among flu researchers: " If you’ve seen one flu season, you’ve seen. . . o
The Flu Virus Can not Be Foreseen There is a joke among flu researchers: " If you’ve seen one flu season, you’ve seen. . . o
admin
2013-07-08
101
问题
The Flu Virus Can not Be Foreseen
There is a joke among flu researchers: " If you’ve seen one flu season, you’ve seen. . . one flu season." For those not up on epidemiological humor: the joke is wry commentary on the unpredictable nature of the flu virus. Every year it looks different,and every strain follows its own types. This is not just a coincidence that frustrates scientists-it’s the reason new strains like H1N1 are impossible to anticipate and fully prepare for.
" I know less about influenza today than I did 10 years ago," quips Dr. Michael Oster-holm, director of the Minnesota Center of Excellence for Influenza Research and Surveillance and a former adviser to the U. S. Department of Health and Human Services. "Every stone we’ve turned over,we get more questions than we do answers."
The flu returns every season and the world periodically experiences catastrophic pandemics, but epidemiologists still do not understand why some strains evolve to infect people and others do not;they are not entirely sure about how the flu is transmitted; nor do they understand why some patients become fatally ill while others develop minimal symptoms. As a result, when a new strain shows up—like H1N1—they often have little information to fall back on,and the lessons of previous pandemics are only somewhat helpful. While epidemiologists are still putting together a complete picture of H1N1, for example, its most striking difference with the seasonal flu is that the elderly are not the most vulnerable population. And when H1N1 does cause serious illness, patients develop different complications that are more difficult to treat than those with seasonal flu. "It’s a very different death," says Osterholm.
The Centers for Disease Control currently maintains six different categories of flu-surveillance programs,but has rolled out new measures this year in order to monitor H1N1 ’s most worrying features. The backbone of its routine surveillance systems is not designed to count individual flu cases, but rather to get general indicators of how widespread the flu is and which strains are in circulation. " Influenza’s chimerical nature makes it a moving target for researchers," says Dr. Allison Aiello, assistant professor of epidemiology at the University of Michigan. " Even if we had complete seasonal flu data from the past, it wouldn’t necessary be helpful for a new strain of influenza," she explains.
What do Dr. Michael Osterholm’s words mean?
选项
A、Nowadays in the U. S. doctors know less about the flu virus than they did before.
B、Doctors in the U. S. like to turn over stones to find questions in their studies and practices.
C、Doctors need to study another 10 years to find solutions to the problem of flu virus.
D、Different types of flu virus bring doctors more questions than solutions to the flu.
答案
D
解析
推理判断题。根据题干关键词Dr.Michael Osterholm定位到文章第2段,作者在第1段介绍了流感病毒的不可预见性和不可预防性,该段则是通过Dr.Michael Osterholm讽刺的话进一步说明流感的难防难治。
转载请注明原文地址:https://kaotiyun.com/show/fzO4777K
0
考研英语一
相关试题推荐
WhichofthefollowingisNOTtrueaccordingtothetext?Itcanbeinferredfromthepassagethat
Thesecondparagraphismeanttodemonstratethat______.Whichofthefollowingistrueaccordingtotheauthor?
Politicalcontroversyaboutthepublic-landpolicyoftheUnitedStatesbeganwiththeAmericaRevolution.(1)_____,evenbefore
Ifyousmoke,you’dbetterhurry.FromJuly1stpubsalloverEnglandwill,bylaw,beno-smokingareas.Sowillrestaurants,of
Whichofthefollowingistrueofthefirstparagraph?Thedifferencebetween"gentleman-in-waiting"and"journeyman"isthat
【F1】Increasingly,overthepasttenyears,people—especiallyyoungpeople—havebecomea-wareoftheneedtochangetheireating
Childrenmaybe______experience,butIthinktheyarequicktolearn.
InreadingthepagesofAmericanScientist,Ihavebeenstruckbythestunningprogressbeingmadeinscienceandengineering,n
Anattempttowardstherectificationoftherotthathassetinthesocialandnationallifeofthecountryisbeingmade,with
TheearliestevidenceofstandardizedtestingbasedonmeritcomesfromChinaduringtheHandynasty.Theconceptofastaterul
随机试题
融资融券交易一般规则包括()
患者,男,40岁。从事蓄电池制造工作。工作以来出现头痛、头晕、肌肉关节酸痛,继而发展到四肢末端呈手套和袜套样的感觉减退,其原因可能是
关于不可复性关节盘前移位临床特征的描述,错误的是
甘麦大枣汤的功用归脾汤的功用
A.吗氯贝胺B.米氮平C.帕罗西汀D.阿米替林E.马普替林作用机制为去甲肾上腺素再摄取的是
夏天干旱,甲、乙两家请人来挖井,阴天时,甲家挖井需要8天,乙家需要10天,晴天时,甲家工作效率下降40%,乙家工作效率下降20%,两家同时开工并同时挖好井,则甲家挖了()个晴天。
读图,回答下列问题。图中②所在的省区,丰富的可再生新能源主要有()。
培育和践行社会主义核心价值观的重要意义有()
Textinghaslongbeenlamentedasthedownfallofthewrittenword,"penmanshipforilliterates,"asonecriticcalledit.Towh
下列度量单位中,用来度量计算机内存空间大小的是
最新回复
(
0
)