首页
登录
职称英语
In 1957 a doctor in Singapore noticed that hospitals were treating an unusua
In 1957 a doctor in Singapore noticed that hospitals were treating an unusua
游客
2024-01-01
58
管理
问题
In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is sometimes called "flu" or a "bad cold". He took samples from the throats of patients in his hospital and was able to find the virus of this influenza.
There are three main types of the influenza virus. The most important of these are type A and B, each of them having several subgroups. With the instruments at the hospital, the doctor recognized that the outbreak was due to a virus in group A, but he did not know the subgroup. Then he reported the outbreak to the World Health Organization in Geneva. WHO published the important news alongside reports of a similar outbreak in Hong Kong, where about 15-20 percent of the population had become ill.
As soon as the London doctors received the package of throat samples, doctors began the standard tests. They found that by reproducing itself with very high speed, the virus had grown more than a million times within two days. Continuing their careful tests, the doctors checked the effect of drugs against all the known subgroups of virus type A. None of them have any protection. This, then, was something new, a new influenza virus, against which the people of the world had no help whatever.
Having found the virus they were working with, the two doctors now dropped it into the noses of some specially selected animals, which get influenza much as human beings do. In a short time the usual signs of the disease appeared. These experiments proved that the new virus was easy to catch, but that it was not a killer. Scientists, like the general public, call it simply Asian flu.
The first discovery of the virus, however, was made in China before the disease had appeared in other countries. Various reports showed that the influenza outbreak started in China, probably in February 1957. By the middle March it had spread all over China. The virus was found by Chinese doctors early in March. But China is not a member of the WHO and therefore does not report outbreaks of disease to it. Not until two months later, when travelers carded the virus into Hong Kong, from where it spread to Singapore, did the news of the outbreak reach the rest of the world. By this time it was well on its way around the world. [br] One thing necessary for discovering influenza outbreaks is ______.
选项
A、doctors and hospital services
B、drugs to fight the disease
C、the United Nations
D、sick Chinese
答案
A
解析
推断题型从第一段、第二段和第三段都可看到这种病毒的发现与各地的医生和医院的工作密不可分……如新加坡医生的努力及他利用医院设备对患者进行采样……;由此推断A为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3324986.html
相关试题推荐
Thefluoroscopemakes______formedicaldoctorstoviewasilhouetteofthebon
ABecauseoftheirhighrateofpredation,BitisnotunusualforrabbitsCproduc
Thedoctorpreferredtoresignratherthanbeaccusedpubliclyofinfamouscondu
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
AfamilydoctorchargedtheNightHomeService(NHS)morethan£500,000in
随机试题
Empathy—theabilitytoappreciatethatastrangerstrugglingwithasuitcase
HowtoUseTechnologytoMakeYouSmarterA)Canacalculator
HowInterpretersWork?I.UnderstandingA.Aboutwordsa
某投资者上一交易日未持有期货头寸,且可用资金余额为20万元,当日开仓买入3月铜期货合约20手,成交价为23100元/吨,其后卖出平仓10手,成交价格为233
下列成本项目中,与传统成本法相比,运用作业成本法核算更具优势的是()。A.直接
在数理统计分析法中,用来显示在质量控制中两种质量数据之间关系的方法是:()。A
A.独活 B.秦艽 C.防己 D.狗脊 E.川乌既能祛风湿,又能退虚热的
城市规划工作必不可少的信息获取途径是()。A.现场考察和实地踏勘 B.摄
A.镇痛药 B.利尿剂 C.血管扩张药 D.抗组胺药 E.抗精神病药异丙
采用头脑风暴法需遵循的原则是()。A.迟延评判 B.民主集中原则 C.各抒
最新回复
(
0
)