首页
登录
职称英语
[img]2018m11s/ct_eyyjsbz2017c_eyyjsbreada_0027_201809[/img] Getting a cold or
[img]2018m11s/ct_eyyjsbz2017c_eyyjsbreada_0027_201809[/img] Getting a cold or
游客
2024-08-10
27
管理
问题
Getting a cold or catching the flu is a common complaint for people every year. In fact, people usually catch between two and five colds each year. No one enjoys the accompanying symptoms: the sore throat, running nose, constant sneezing and headaches. Unsurprisingly, cold medication has become a big business. People spend billions of dollars to combat this recurring problem. We see the number and variety of over-the-counter medicines each time we enter a pharmacy. Is a cure for the common cold possible? The answer seems to be both yes and no.
First of all, the common cold itself is not a single disease. Any of two hundred different viruses could be responsible for the symptoms of a cold. Developing a vaccine for the common cold would literally mean having to develop hundreds of vaccines.
Additionally, some cold viruses have the ability to change their molecular appearance. Thus, even though our body may become immune to a certain cold virus this winter, by next winter our antibodies will probably not recognize it.
However, one family of viruses, the rhinoviruses, seems to account for almost 40% of all colds. Therefore, scientists have been focusing their research on this family of virus es in the hopes that treatments targeting rhinoviruses will result in a drastic decrease in the number of colds people get. In the late 1990s, researches experienced some initial success. Biologists developed a treatment, an anti-viral molecule called BIRR4, which prevented the binding of the virus to cells in the nose. This binding is an essential first step to start a viral infection and, were it preventable, many of the infectiors would be bypassed. For the next few years, the Pharmaceutical giant Boehringer tried to make this treatment commercially viable. Unfortunately, they found to their dismay that this treatment only worked just prior to getting a cold or in the first stages of infection when most people do not yet realize anything is wrong. As a possible treatment for a cold, it was severely limited and so in 2000, Boehringe dropped the BIRR4 project.
Another difficulty in finding a cure for the common cold is that the cold virus does not actually cause our cold symptoms. Indeed, by the time we start to show cold symptoms, the viral infection is almost over. Most infections result in no symptoms at all. The symptoms that we get from a cold are, in reality, produced by our body’s immune response, not by the virus itself. Thus, some scientists are now suggesting targeting the body’s immune responses rather than the virus itself, as we do when we treat allergies. One medical researcher suggests that in order to find a cure for colds we must weaken our immune system’s response. Through a cocktail of certain drugs-interferon, ibupro-fen and chlorpheniramine-cold sufferers would be able to decrease the anti-inflammatory part of the immune response and get rid of their symptoms, while still allowing their body to fight off the remaining viral infection. Ibuprofen and chlorpheniramine are both inexpensive and available over the counter. Unfortunately, however, a single dose of interferon is about $ 200 and is as yet unavailable in large over-the-counter quantities.
Though at times it seemed that a cure was already tantalizingly close, this process of infection and our body’s response to it is clearly more complicated than previously guessed. Undoubtedly, the search for a cure for the common cold will continue. What form this eventual cure will take, though, is anyone’s guess.
Questions 56 to 60
Complete the table using no more than three words for each blank.
[br]
选项
答案
immune response
解析
(根据横线处上一句可将答案定位在第五段。原文为“The symptoms that we get from a cold are,in reality,produced by our body’s immune responses”。因此该空应填入immune response。)
转载请注明原文地址:https://tihaiku.com/zcyy/3713406.html
相关试题推荐
WhereisthewomangettinginformationabouttheOperaHousetour?[br][origin
WhereisthewomangettinginformationabouttheOperaHousetour?[br][origin
WhereisthewomangettinginformationabouttheOperaHousetour?[br][origin
Whichtwosquaresaremissing?[img]2018m11s/ct_eyyjsbz2017j_eyyjsbiq_0148_20180
[img]2018m11s/ct_eyyjsbz2017j_eyyjsbreadc_0114_201809[/img]Ifideascansymb
[img]2018m11s/ct_eyyjsbz2017j_eyyjsbreadc_0114_201809[/img]Ifideascansymb
[img]2018m11s/ct_eyyjsbz2017j_eyyjsbreadc_0114_201809[/img]Ifideascansymb
[img]2016m3x/ct_eyyjsbz2015c_eyyjsbreada_0058_20163[/img]Eagles,soaringhi
[img]2016m3x/ct_eyyjsbz2015c_eyyjsbreada_0058_20163[/img]Eagles,soaringhi
[img]2016m3x/ct_eyyjsbz2015c_eyyjsbreada_0058_20163[/img]Eagles,soaringhi
随机试题
HowtomarkabookOneofthebestway
[originaltext]M:CouldyougivemesomeinformationabouttrainsforBeijing?W
根据《核工业铀矿冶工程设计规范》,新建铀矿冶工程的建筑物辐射防护距离正确的是(
某拟建项目的建筑安装工程费为800万元,设备及工器具购置费为350万元,工程建设
患者,男,2006年大学毕业,同年5月右腿麻木,8月左腿也麻木,9月出现行走困难
骨关节结核治愈的标准有哪些?
()指以少数学生为对象,在较短时间内尝试做小型的课堂教学,并摄制成录像
金融衍生工具的价值与合约标的资产紧密相关,这体现了金融衍生工具的()。A.跨期
共用题干某国有6家快递公司在全国范围内提供快递服务。为研究该国快递市场竞争状况
会计职业道德教育中的其他教育不包括()。A、形势教育 B、品德教育 C、法制
最新回复
(
0
)