首页
登录
职称英语
It has become a cliche among doctors who deal with AIDS that the only way t
It has become a cliche among doctors who deal with AIDS that the only way t
游客
2023-08-31
34
管理
问题
It has become a cliche among doctors who deal with AIDS that the only way to stop the epidemic is to develop a vaccine against HIV, the virus that causes it. Unfortunately, there is no sign of such a thing becoming available soon. The best hope was withdrawn from trials just over a year ago amid fears that it might actually be making things worse. As a result, vaccine researchers have mostly gone back to the drawing board of basic research. Meanwhile, the virus marches on. Last year, according to UNAIDS, the international body charged with combating it, 2.7 million people were in fected, bringing the estimated total to 33 million.
Reuben Granich and his colleagues at the World Health Organization (WHO), though, have been exploring an alternative approach. Instead of a vaccine, they wonder, as they write in The Lancet, whether the job might be done with drugs.
In the spread of any contagious disease, each act of infection has two parties, one who already has the disease and one who does not. Vaccination works by treating the uninfected individual prophylactically (预防地). Since it is" impossible to say in advance who might be exposed, that means vaccinating everybody. The alternative, as Dr. Granich observes, is to treat the infected individual and thus stop him being infectious. For this to curb an epidemic would require an enormous public-health campaign of the sort used to promote vaccination. But that campaign would be of a different kind. It would have to identify all (or, at least, almost all) of those infected. It would then have to persuade them to undergo not a short, simple vaccination course, but rather a drug regime that would continue indefinitely.
The first question to ask of such an approach is, could it work in principle? It is this that Dr. Granich and his colleagues have tried to answer. Using data from several African countries, they have constructed a computer model to test the idea. In their ideal world, everyone over the age of 15 would volunteer for testing once a year. If found to be infected, they would be put immediately onto a course of what are known as first-line antiretroviral drugs (ARVs). These are reasonably cheap, often generic, pharmaceuticals (医药品) that, although they do not cure someone, do lower the level of the virus in his body to the extent that he suffers no symptoms. They also -- and this is the point of the study -- reduce the level enough to make him unlikely to pass the virus on. For the 3% or so of people per year for whom the first-line ARVs do not work, more expensive second-line treatments would be used. [br] What does the author tell us about Dr. Granich and his collegues and their trials?
选项
A、They use data from some African countries and other poor countries.
B、They want to find out whether the alternative approach can function.
C、The first-line antiretroviral drugs are effective in curing patients.
D、Their study is to let the patients have no symptoms of AIDs.
答案
B
解析
推理判断题。由定位句可知,Dr. Granich和其同事们想要通过研究知道这一方法能否起作用,B 符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/2972602.html
相关试题推荐
Britain’sredphoneboxeshavebecomeoutofdateintheageofthemobile.
Britain’sredphoneboxeshavebecomeoutofdateintheageofthemobile.
Britain’sredphoneboxeshavebecomeoutofdateintheageofthemobile.
Britain’sredphoneboxeshavebecomeoutofdateintheageofthemobile.
Britain’sredphoneboxeshavebecomeoutofdateintheageofthemobile.
IthasbecomedistinctiveoftheChannel’sproducts______(凭借其广泛的使用和良好的口碑).byvir
[originaltext]Yogabecomesverypopularnowadays,butitisimportantthat
[originaltext]Yogabecomesverypopularnowadays,butitisimportantthat
[originaltext]Yogabecomesverypopularnowadays,butitisimportantthat
[originaltext]TheAmericansbelievethatanybodycanbecomePresidentofth
随机试题
GermanzoologistRandolfMenzelsaysbeesaren’tasbusyaspeoplebelievet
Jerrysawhisdoglimpingonabloodylegandjumpeduptheconclusionthatith
Therehasbeen,inhistory,amanwhowa
安全检查的内容是()。A.查思想 B.查管理和查隐患 C.查方案 D.查
施工单位应当为施工现场从事危险作业的人员办理意外伤害保险。实行施工总承包的意外伤
按试验确定级配碎石的目标级配与最佳含水率,应以现场施工的压实标准成型试件,进行C
初产妇,顺产后第2天,母乳喂养,诉乳房胀痛。乳房无红肿,宫底位于脐下一横指,阴道
A.芥子 B.杏仁 C.半夏 D.桔梗 E.竹茹治疗寒饮呕吐,宜选用的药
基金名称显示投资方向的,基金的非现金资产应当至少()投资于该基金名称所显示的
下列选项中,()不属于银行业从业人员对客户授信尽职的内容。A.客户所在区域的信
最新回复
(
0
)