John Snow was a famous doctor in Lo

John Snow was a famous doctor in London - so expert, indeed, that he attended Queen Victoria as her personal physician. But he became inspired when he thought about helping ordinary people exposed to cholera. This was the deadly disease of its day. Neither its cause nor its cure was understood. So many thousands of terrified people died every time there was an outbreak. John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be controlled until its cause was found
He became interested in two theories that possibly explained how cholera killed people. The first suggested that cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims. The second suggested that people absorbed this disease into their bodies with their meals. From the stomach the disease quickly attacked the body and soon the affected person died
John Snow suspected that the second theory was correct but he needed evidence. So when another outbreak hit London in 1854, he was ready to begin his enquiry. As the disease spread quickly through poor neighbourhoods, he began to gather information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why
First he marked on a map the exact places where all the dead people had lived. This gave him a valuable clue about the cause of the disease. Many of the deaths were near the water pump in Broad Street (especially numbers 16, 37, 38 and 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he made further investigations. He discovered that these people worked in the pub at 7 Cambridge Street. They had been given free beer and so had not drunk the water from the pump. It seemed that the water was to blame
Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. He immediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used. Soon afterwards the disease slowed down. He had shown that cholera was spread by germs and not in a cloud of gas
In another part of London, he found supporting evidence from two other deaths that were linked to the Broad Street outbreak. A woman, who had moved away from Broad Street, liked the water from the pump so much that she had it delivered to her house every day. Both she and her daughter died of cholera after drinking the water. With this extra evidence John Snow was able to announce with certainty that polluted water carried the virus
To prevent this from happening again, John Snow suggested that the source of all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more. Finally "King Cholera" was defeated

結果 (中文) 3:

约翰·斯诺在伦敦是一位著名的医生-所以专家，事实上，他参加了维多利亚女王作为她的私人医生。但当他想到帮助暴露于霍乱的普通人时，他就受到了启发。这是它的致命的一天的疾病。无论是它的事业，也没有它的治愈。每一次爆发的时候，成千上万的恐惧的人们都死了。约翰·斯诺想面对挑战，解决这个问题。他知道，霍乱是不会被控制的，直到它的原因被发现他对两种理论很感兴趣，这可能解释了霍乱是如何造成人死亡的。第一个建议，霍乱在空气中繁殖。一团危险的气体飘来飘去，直到它找到了它的受害者。第二个建议是，人们用他们的食物将这种疾病吸收到他们的身体中。从胃部疾病很快袭击了身体，很快受影响的人死亡约翰·斯诺怀疑第二个理论是正确的，但他需要证据。因此，当另一个爆发袭击伦敦在1854，他准备开始他的调查。由于疾病迅速蔓延，通过贫困的社区，他开始收集信息。在两个特别的街道，霍乱疫情是如此严重，超过500人死亡，在十天内。他决心找出原因首先，他在一张地图上标出了所有死去的人住的地方。这给了他一个关于疾病的原因的有价值的线索。许多死亡人数都在宽阔的街道（特别是16号、37号、38号和40号）附近的水泵附近。他还注意到，一些房子（如20和21宽街和8和9剑桥街）没有死亡。他没有预见到这一点，所以他作了进一步的调查。他发现这些人在剑桥街7街的酒吧里工作。他们得到了免费的啤酒，所以没有喝从泵的水。似乎水是要怪的接着，约翰·斯诺望着这两条街上的水的来源。他发现它来自伦敦被污染的河水所污染的河流。他立即告诉宽阔的街道上的惊讶的人，以消除泵的手柄，使它不能被使用。不久之后疾病减缓了。他证明了霍乱是由细菌传播的，而不是在一团气体中传播的在伦敦的另一个部分，他发现了两个与广泛的街头爆发有关的死亡的证据。一个从宽阔的街道上搬走的女人，她很喜欢水泵里的水，每天都把它送到她家里去。她和她的女儿在喝了水之后死于霍乱。有了这个额外的证据，约翰·斯诺就可以肯定地宣布，被污染的水携带了病毒为了防止这种情况再次发生，约翰·斯诺建议检查所有水源的来源。自来水公司被指示不要再让人们接触到被污染的水了。最后“霍乱王”被打败了