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Influenzahasbeenwithusalong,longtime.AccordingtosomeGreekwritersonmedicalhistory,theo...
Influenza has been with us a long, long time. According to some Greek writers on medical history, the outbreak of 412 BC was of influenza. The same has been suggested of the sickness that swept through the Greek army attacking Syracuse in 395 BC. Flu is a disease that moves more quickly among people living in crowded conditions, so it is likely to attack armies.
During the nineteenth century there were five widespread outbreaks of influenza. The last of the five happened in 1889 and marked the beginning of the story of influenza in our time. Like the present outbreak, it started in Asia.
For more than forty years before that outbreak, influenza had steadily decreased and was believed to be dying out. A new group of outbreaks was introduced by the great outbreak of 1889-1890 and for the next quarter of a century flu remained a constant threat.
In April 1918, flu broke out among American troops stationed(驻扎) in France. It quickly spread through all the armies but caused relatively few deaths. Four months later, however, a second outbreak started which proved to be a killer. It killed not only the old and already sick but also healthy young adults. It went through every country in the world, only a few distant islands in the South Atlantic and the Pacific remaining untouched. It brought the life of whole countries to a stop; food supplies stopped and the work loss was very great. Before the great outbreak ended, it had killed at least 15 million people.
Medical science is still not certain what hit us in 1918. The influenza virus(病毒) was not found until 1933, so all that today can be said about the 1918 outbreak was the kind of antibodies(抗体)it produced.
The 1918 outbreak was never controlled. It simply burned itself after taking a great number of human lives. Before man could have done much to lessen the effect of such an outbreak, he would have had to find the influenza virus so that vaccine (疫苗)could be develop. It would also help to have an international reporting system so that countries threatened with the disease could prepare to defend themselves.
The first big advance was made in 1933, when a team of British doctors found the type A influenza virus. In 1940 a doctor of the United States found type B. Later type C was found, along with many sub-groups of types A and B. Vaccines were prepared and used widely by the armies during the Second World War to prevent outbreaks.
The flu virus proved trickier than most. A vaccine good against one type gave no protection against another. Indeed type A virus changes its nature so quickly that a perfectly good vaccine may lose its value because of the change. This increases the need for the speedy discovery of flu outbreaks, so that stocks of the right vaccine can be prepared quickly after an outbreak. Starting such a warning system is one of the first things done by the World Health Organization.
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During the nineteenth century there were five widespread outbreaks of influenza. The last of the five happened in 1889 and marked the beginning of the story of influenza in our time. Like the present outbreak, it started in Asia.
For more than forty years before that outbreak, influenza had steadily decreased and was believed to be dying out. A new group of outbreaks was introduced by the great outbreak of 1889-1890 and for the next quarter of a century flu remained a constant threat.
In April 1918, flu broke out among American troops stationed(驻扎) in France. It quickly spread through all the armies but caused relatively few deaths. Four months later, however, a second outbreak started which proved to be a killer. It killed not only the old and already sick but also healthy young adults. It went through every country in the world, only a few distant islands in the South Atlantic and the Pacific remaining untouched. It brought the life of whole countries to a stop; food supplies stopped and the work loss was very great. Before the great outbreak ended, it had killed at least 15 million people.
Medical science is still not certain what hit us in 1918. The influenza virus(病毒) was not found until 1933, so all that today can be said about the 1918 outbreak was the kind of antibodies(抗体)it produced.
The 1918 outbreak was never controlled. It simply burned itself after taking a great number of human lives. Before man could have done much to lessen the effect of such an outbreak, he would have had to find the influenza virus so that vaccine (疫苗)could be develop. It would also help to have an international reporting system so that countries threatened with the disease could prepare to defend themselves.
The first big advance was made in 1933, when a team of British doctors found the type A influenza virus. In 1940 a doctor of the United States found type B. Later type C was found, along with many sub-groups of types A and B. Vaccines were prepared and used widely by the armies during the Second World War to prevent outbreaks.
The flu virus proved trickier than most. A vaccine good against one type gave no protection against another. Indeed type A virus changes its nature so quickly that a perfectly good vaccine may lose its value because of the change. This increases the need for the speedy discovery of flu outbreaks, so that stocks of the right vaccine can be prepared quickly after an outbreak. Starting such a warning system is one of the first things done by the World Health Organization.
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流感就一直和我们在一起很长、很长的时间。根据一些希腊作家对医疗的历史,在公元前的爆发的流行性感冒了412。同样的事情已经被建议的疾病,席卷了希腊军队进攻叙拉古在公元前395。流感是一种可移动更快地在拥挤的条件下生活的人中间,所以它是容易攻击的军队。
在19世纪,有5个广泛流行性感冒爆发。最后的五个发生在1889年,标志着故事一开始就在我们这个时代的流行性感冒。就像这次爆发中,它开始在亚洲。
四十多年了,在那之前爆发流感的持续下降,人们相信他快要灭绝了。一群新疫情的爆发是由大爆发,介绍了1889-1890和接下来的四分之一世纪流感威胁仍然是一个常数。
在四月,流感爆发了1918年的今天,美国驻扎(驻扎在法国。它很快传遍所有的军队而影响相对较少的人死亡。四个月后,然而,第二个爆发这证明是一个杀手。它不仅和老的死亡已生病了,但还是健康的年轻人。它经历了在世界上任何一个国家,只有为数不多的遥远的岛屿在南大西洋和太平洋剩余敬谢不敏。它带来了生活的整个国家停止;食物供应已经停下了,而且工作的损失是很大的。爆发结束巨变之前的,它已经杀死了至少15万人。
医学科学还不能肯定什么打了我们在1918年。流感病毒(病毒)并没有发现,直到1933年),所以,人们都可以今天是说有关1918年爆发是一种抗体(抗体)了。
1918年爆发从来没有控制。它简单的自动烧在采取了许多人的生命。在人类可以做很多机率的影响,这样的爆发,他将不得不寻找流感病毒疫苗,疫苗(所以)可以培养。它也将有助于有一个国际报告制度,使国家威胁与该病可能准备来保护自己。
第一个大的进步是在1933年,当一个球队的英国医生发现了a型流感病毒。1940年的美国医生发现类型b后的C类被发现,随着许多次的a型和b疫苗有准备,并得到广泛应用的军队在第二次世界大战期间,以防止疫情的爆发。
流感病毒证明比大多数的小聪明。对一种疫苗没有良好保护与另一个计划的优劣。事实上A型病毒变化如此之快,以至于它的自然完美的疫苗可能失去其价值因为有了这样的转变。这增加了需要快速地发现的流感爆发,使股票的权利,是疫苗,可以制备迅速爆发。这样一个预警系统开始的第一件事是完成,由世界卫生组织设立。
在19世纪,有5个广泛流行性感冒爆发。最后的五个发生在1889年,标志着故事一开始就在我们这个时代的流行性感冒。就像这次爆发中,它开始在亚洲。
四十多年了,在那之前爆发流感的持续下降,人们相信他快要灭绝了。一群新疫情的爆发是由大爆发,介绍了1889-1890和接下来的四分之一世纪流感威胁仍然是一个常数。
在四月,流感爆发了1918年的今天,美国驻扎(驻扎在法国。它很快传遍所有的军队而影响相对较少的人死亡。四个月后,然而,第二个爆发这证明是一个杀手。它不仅和老的死亡已生病了,但还是健康的年轻人。它经历了在世界上任何一个国家,只有为数不多的遥远的岛屿在南大西洋和太平洋剩余敬谢不敏。它带来了生活的整个国家停止;食物供应已经停下了,而且工作的损失是很大的。爆发结束巨变之前的,它已经杀死了至少15万人。
医学科学还不能肯定什么打了我们在1918年。流感病毒(病毒)并没有发现,直到1933年),所以,人们都可以今天是说有关1918年爆发是一种抗体(抗体)了。
1918年爆发从来没有控制。它简单的自动烧在采取了许多人的生命。在人类可以做很多机率的影响,这样的爆发,他将不得不寻找流感病毒疫苗,疫苗(所以)可以培养。它也将有助于有一个国际报告制度,使国家威胁与该病可能准备来保护自己。
第一个大的进步是在1933年,当一个球队的英国医生发现了a型流感病毒。1940年的美国医生发现类型b后的C类被发现,随着许多次的a型和b疫苗有准备,并得到广泛应用的军队在第二次世界大战期间,以防止疫情的爆发。
流感病毒证明比大多数的小聪明。对一种疫苗没有良好保护与另一个计划的优劣。事实上A型病毒变化如此之快,以至于它的自然完美的疫苗可能失去其价值因为有了这样的转变。这增加了需要快速地发现的流感爆发,使股票的权利,是疫苗,可以制备迅速爆发。这样一个预警系统开始的第一件事是完成,由世界卫生组织设立。
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