求两篇有关SARS和禽流感的英语短文

1、sars 对人们生活的影响,参考:

（英语）China is about to start the world's first clinical trials of a vaccine against SARS. But other scientists fear the Chinese might be moving too fast.
Previous research with coronaviruses similar to SARS raises fears that the vaccine now being tested could actually make SARS worse, due to an effect called immune enhancement.

The Chinese government news agency Xinhua announced on Saturday that human trials of a SARS vaccine would start before the end of December. Yin Hongzhang of the State Food and Drug Administration said the vaccine protects monkeys from the disease.

The vaccine was developed by the Beijing laboratory of Sinovac, a Chinese biotech company, and is made of whole, killed virus. The strain was certified safe for human use by the Chinese FDA in October.
Sinovac spokesmen said on Tuesday that people are already volunteering for the trials. It says it will discuss its test methods with the World Health Organization, which has called for "fast-track" testing for SARS vaccines.

"I hope the Chinese scientists have investigated this issue," says Michael Lai, vice president of Taiwan's Academia Sinica, who is coordinating Taiwan's effort to develop SARS vaccines. "Without such knowledge it is dangerous to conduct large-scale clinical trials."

1、（中文）中国即将展开，是全球首个首拦孙临床试验中的疫苗对严重急性呼吸系统综合症。但其他科学家们担心，中国可能会走得太快。
先前的研究与冠状病毒类似综合症衡圆引起的恐惧这种疫苗正受到考验，实际上可能使综合症更糟的是，由于影响了所谓的免疫增强。

中国政府新闻社新华社宣布周六表示，人体试验的非典疫苗将开始12月底之前结束。尹hongzhang该国食品和药物管理局说，该疫苗保护猴子，从疾病。

该疫苗是由北京实验者链室sinovac人，中国的生物科技公司，并取得了全杀死病毒。该菌株安全认证的供人类使用的，由中国林业局在10月。
sinovac代言人说，周二人已自愿接受了审判。它说，它将讨论其测试方法与世界卫生组织，其中有所谓的"快车道"投石问非典型肺炎疫苗。

"我希望中国的科学家调查了这个问题， "迈克尔说，赖副会长，台湾的中研院，他们正在协调台湾的努力来发展沙士疫苗。 "如果没有这样的知识，这是很危险进行大规模的临床试验" 。

2、禽流感的英语短文

Why should the culling of poultry processing sound?
Culling of poultry because of the body may contain the deadly bird flu virus, if not to eradicate these pathogens to diseased birds proliferation into the market, it is bound to cause the highly pathogenic avian influenza virus spread, at the same time may harm consumers health. In order to guarantee the health of consumers and the disease has been effectively controlled, we must do the culling of poultry after burning deep sound processing.
Why should the deadly bird flu outbreak within the radius of three kilometers of all poultry cull?
China will be highly pathogenic avian influenza outbreak radius of three km of infected areas zoned because outbreak radius 3 km within the scope of birds are the most vulnerable to infection, in order to ensure that the deadly bird flu epidemic will be totally Fight, outbreak and its surrounding three kilometers of all poultry culling is entirely necessary. This will be conducive to control diseased birds and their excreta, sewage and other sources of pollution caused by pathogenic transmission. This is the potent infectious diseases control of the most effective practices, but also international practice.

（中文）

2、为什么要将扑杀的家禽进行无害化处理？
因为被扑杀的家禽体内可能含有高致病性禽流感病毒，如果不将这些病原根除，让病禽扩散流入市场，势必造成高致病性禽流感病毒的传播扩散，同时可能危害消费者的健康。为了保证消费者的身体健康和使疫病得到有效控制，必须对扑杀的家禽做焚烧深埋后的无害化处理。
为什么要将高致病性禽流感疫点周围半径3公里范围内所有家禽扑杀？
我国将高致病性禽流感疫点周围半径3公里范围划为疫区，因为，疫点周围半径3公里范围内的禽是最易受到感染的，为了保证高致病性禽流感疫情能够得到完全彻底扑灭，将疫点及其周围3公里的家禽全部扑杀是完全必要的。这将有利于控制病禽及其粪便、污水等污染源造成的病原传播。这是控制烈性传染病的最有效的做法，也是国际通行做法。

1.
SEVERE ACUTE RESPIRATORY SYNDROME (SARS) is a respiratory illness caused by a virus belonging to the coronavirus family, which includes viruses that cause the common cold. The first report of SARS occurred in Asia in February 2003 and spread rapidly to over 24 countries in the following months. This outbreak resulted in a worldwide total of 8098 SARS cases and 744 deaths. There were 192 cases of SARS and zero deaths in the United States. Travelers returning from areas with SARS were cause for many of the U.S. cases. The SARS outbreak of 2003 was contained with the last known case of SARS occurring in Taiwan, China on June 15 2003. Since then a confirmed case of SARS was reported on September 8, 2003 in Singapore. However, this was an isolated case linked to accidental infection in the laboratory. While this case did not cause concern for international public health, the threat of re-emergence of the SARS associated coronavirus persists
All say

Contagion SARS is a kind of impatient breath system infection, World Health Organization(WHO) announces its name as Severe Acute Respiratory Syndrome on March 15.(SevereAcuteRespiratorySyndrome, SARS)The SARS is cause by a kind of new cause of, the clinical main performance is a pneumonia, there is gathering phenomenon of show the Zhao at the family and the hospital, currently at local and parts of regions the sick example take place.

SARS physically is different from so-called typical model pneumonia cause by germ of a set of pneumonia, once indicated generally a germ outside of cause body with the result that of pneumonia.Mainly point now from pay an original body, dress original body, army corps germ and sign a gram of time body, gland virus and a little bit other not clear microorganisms cause of impatient breath way infection companion pneumonia.These cause bodies also call the non- typical model cause body.SARS mainly passes close quarter air breathing in flying particles of saliva with touch elbow a dissemination, is the impatient infectious disease of a kind of breath way, have already compared stronger infection.

Cause

World Health Organization declares that formal confirmation coronal a mutation of the virus is the cause body which causes SARS.The scientists say that the virus of the virus and flu of the mutation coronal contains relative relation, but it is very special, have never discovered on mankind's body before and the scientist named after its"SARS virus".(the SARS was "non- Dian" the English abbreviation of the scientific term)The Hong Kong health expert expeled it the possibility for having something to do with the virus of A type flu and B type flu and appear with 1997 of H5 N1 the virus of bird flu also didn't have connection.Say according to Hong Kong health officer, SARS is usually cause by virus, for example the virus, gland virus of flu with other breath way virus.SARS also is probably cause by living creature body.

A kind of new contagion disease of the breath system that contagion SARS is cause by the mutation coronal virus(the SARS virus)."It is in the center a circular, on all sides have gray shadow, most the outer circle be the Tu that a tightly gets to rise part."Clear while give or get an electric shock the mirror everything see, the appearance of virus" is like'Statue of Liberty'the hat of top of head, call'corona of the sun virus'perhaps'coronal virus'.Basically confirming it is basicallythe cause body of SARS this time."

The cause learns a research dynamic state

Withdraw a lung specimen slice after grind the liquid infuses into the cell that brain, chicken Pei and body of small rat outside develop respectively.""Rat, chicken Pei, cell" are three kinds of different virus implantation body.After 30 hours, in addition to chicken Pei, two other cause implantation bodies have already taken place variety:"Inoculate to there are 8 all appearing in 10 rats of virus with the result that disease respond, 2 among those have been already die."The pathological changes of cell equally shows Zhao, "under the electricity mirror of the cell appeared the net structure of the pathological changes".In view of the fact inoculate for the first time, various varieties all haven't expressed a certain regulation and connect down to want to constantly chase with the result that the lung slice of the disease small rat withdraws a liquid to infect more small rats and cell again to acquire more stable cause body.7 divas saw "coronal virus" in the electricity the mirror.

"The not all new rare virus of the coronal virus, but existing discover from mankind's body of all three kinds of coronal viruses, all will lead to common common cold, slight a cough and fever, cut off little can cause pneumonia complications death, these all with not typical model the high contagion of the pneumonia with cause death sex is different.

Collected the serum of 30 patients of SARSs, make use of'immunity fluorescence method'will separate virus and this 30 serums to carry on a serology examination, have 23 reactions to present masculine gender as a result, this directly explained coronal virus with'non- Dian'the cause contain the most close relation.But reversal record the DNA sequence measurement that the PCR method carries on virus to show, separate the cause body of with have already known coronal virus the gene and source attains 64% and so still have 36% dissimilarities is because of why?This at basic confirm the cause body of SARS of in the meantime, after also explaining that the coronal virus this time is a gene variation of all new species.

According to this kind of coronal virus invade human body of characteristics, the suggestion is public to want to frequently wash hands and this is probably even more important than wearing mouth-muffle to want.Because this kind of virus ability is up in the air to survive for 4-5 hours, the hand will become their to depend on a body, but the hand usually gets in touch with the eye, etc. body part again, these mucosa organization of the coat protein will become fan coronal virus and human body cell to combine together of be subjected to a body, then become the passage that the virus gets into a human body."

But the variety of this kind of gene actually again is how take place?On April 11 of in brief stay overnight an experiment at a time medium, passing to act for a gene will separate February of cause to the rat death of the coronal virus convert for the virus of infect the cat cell, the cause body which supports SARS as a result may when the animal and mankind's virus meet, be take place gene to exchange but creation of predict.Will separate a gene part of the coronal virus of the coronal virus ducting cat of , this gene codes a kind of coat protein and can identify and help to wear deeply cat cell.After several hours, small rat coronal some coat protein genes of sons of the virus became the coat gene of cat, as a result can infect cat cell, this proved the coronal virus reshuffles gene ability in this kind of way really a dissimilarity usually.The coronal virus passes a gene change and can with ease change an infection host, SARS(SARS) virus is also very likely to be existing nimal exchange infection to mankind behind mutate of a kind of more fatal form.

Connect next is to build up a "animal experiment model", provide the conclusion the proof for the end confirmation of coronal virus, complete virus heredity a sequence to measure all experiments of preface, real make the sequence of events of pure cause body.

2.
China announces the chief culprit coronal of"non- Dian" virus diagram