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
10
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 carried 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] The type of influenza discussed in this story______.
选项
A、had been classified years before
B、could not be cured by any known drug
C、could be prevented from spreading
D、could not affect adults
答案
B
解析
细节题型见第三段第三至五句: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.(这些医生们继续他们细致的测试后,发现所有已知对A类病毒的附属亚病毒有疗效的药物对此种病毒均无效;因此这种病毒是种新型的流感病毒,世上还无药物能对人类抵抗这种病毒有所帮助);因此B为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3323969.html
相关试题推荐
ABecauseoftheirhighrateofpredation,BitisnotunusualforrabbitsCproduc
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
InHongKong,doctorsreportedthat,forunclearreasons,12recovered$ARSpati
In1957adoctorinSingaporenoticedthathospitalsweretreatinganunusua
随机试题
InAmerica,peoplearefacedwithmoreandmoredecisionseveryday,whether
Manystudentsfindtheexperienceofattendinguniversitylecturestobeac
Whatdodietingandenergypolicyhaveincommon?TheSnackWelleffect.The
SWOT分析中T代表()A.战略机会 B.战略威胁 C.自身的优势
关于水喷雾灭火系统手动控制方式的说法正确的是()。A.当火灾探测器发出火警信号
检验检测机构在辨识出潜在的不符合因素时,应采取()。A.纠正措施 B.预防措
咬合病的临床表现不包括A.磨损 B.磨牙症 C.牙周组织创伤 D.牙髓炎
下列哪项是高热惊厥的护理目标A.体温降至正常 B.发作时不发生自伤 C.发作
患者,男,30岁,呼吸困难2天就诊,发作前有鼻痒、打喷嚏。既往有类似病史。体检:
下列现浇大体积混凝土需洒水养护不少于14天的有( )。A.硅酸盐混凝土 B.
最新回复
(
0
)