首页
登录
职称英语
Rabies is an ordinarily infectious disease of the central nervous system, cau
Rabies is an ordinarily infectious disease of the central nervous system, cau
游客
2023-12-18
40
管理
问题
Rabies is an ordinarily infectious disease of the central nervous system, caused by a virus and, as a rule, spread chiefly by domestic dogs and wild flesh-eating animals. Man and all warm-blooded animals are susceptible to rabies. The people of ancient Egypt, Greece and Rome ascribed rabies to evil spirits because ordinarily gently and friendly animals suddenly became vicious and violent without evident cause and, after a period of maniacal behaviour, became paralysed and died.
Experiments carried out in Europe in the early nineteenth century of injecting saliva from a rabid dog into a normal dog proved that the disease was infectious. Preventive steps, such as the destruction of stray dogs, were taken and by 1826 the disease was permanently eliminated in Norway, Sweden and Denmark. Though urban centres on the continent of Europe were cleared several times during the nineteenth century, they soon became reinfected since rabies was uncontrolled among wild animals.
During the early stages of the disease, a rabid animal is most dangerous because it appears normal and friendly, but it will bite at the slightest provocation. The virus is present in the sailvary glands(腺) and passes into the saliva so that the bite of the infected animal introduces the virus into a fresh wound. If no action is taken, the virus may become established in the central nervous system and finally attack the brain. The incubation(潜伏期) period varies from ten days to eight months or more, and the disease develops more quickly the nearer to the brain the wound is. Most infected dogs become restless, nervous, and irritable and vicious, then depressed and paralysed. With this type of rabies, the dog’s death is inevitable and usually occurs within three to five days after the onset of the symptoms.
Anti-rabies vaccine(疫苗) is widely used nowadays in two ways. Dogs may be given three-year protection against the disease by one powerful injection, while persons who have been bitten by rabid animals are given a course of daily injections over a week or ten days. The mortality rate from all types of bites from rabid animals has dropped from 9% to 0.5%. In rare cases, the vaccine will not prevent rabies in human beings because the virus produces the disease before the person’s body has time to build up enough resistance. Because of this, immediate vaccination is essential for anyone bitten by an animal observed acting strangely and the animal should be captured circumspectly, and examined professionally or destroyed. [br] Once a person, infected, he should______.
选项
A、be isolated immediately
B、be observed in hospital
C、be given vaccinatio at once
D、be examinated professionally
答案
C
解析
最后一句讲到,一个人一旦被怀疑有病的动物咬了,要立即接受疫苗。故选C。
转载请注明原文地址:https://tihaiku.com/zcyy/3285399.html
相关试题推荐
ASystemofGuaranteedSubsistenceMinimumAhundredyearsagoitw
ASystemofGuaranteedSubsistenceMinimumAhundredyearsagoitw
______isasystemofarbitraryvocalsymbolsusedforhumancommunication.A、Lin
Britain’sSystemofEducationTheBritishCommonwealthincl
Britain’sSystemofEducationTheBritishCommonwealthincl
WhichofthefollowingisNOTtrueaboutthepoliticalsystemofNewZealand?A、N
Linguisticsuse_______torefertotheabstractlinguisticsystemsharedbythe
Weallknowthatprogramminglanguageisthesystemofsyntax,grammar,ands
Weallknowthatprogramminglanguageisthesystemofsyntax,grammar,ands
Thecentralquestioniswhetherwehaveallowedaculturetodevelopthatdis
随机试题
FiveMainLiteraryMovementsinAmericanHistoryI.Transcendent
TipsforApplyingtoU.S.CollegesI.GeorgeMasonUniversit
下列几组药物中同服可以增进吸收的是()A:维生素B6与左旋多巴 B:苯巴比妥
紫杉醇是()。A:抗肿瘤金属配合物 B:抗代谢药物 C:抗肿瘤抗生素 D
A.病变局限于子宫 B.病变转移多个脏器 C.病变扩散,仍局限于附件、阴道及
从国际大环境来看,跨国纳税人可利用各国税收政策存在的( )和税收优惠差异等,进
证券公司应当为每个客户单独建立纸质或者电子档案,客户档案应当包括的内容有()。A
()是中央银行区别于普通商业银行的根本标志。A.独占货币发行权 B.独占货
按照费用构成要素划分的建筑安装工程费用项目组成,下列费用中属于建筑安装工程费中检
广播设备的接地应直接接至( )。A.铜排 B.等电位接地端子箱 C
最新回复
(
0
)