UN warns over swine flu in birds 联合国警告猪流感在家禽类的
文章来源:未知 文章作者:meng 发布时间:2009-08-28 03:19 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

The discovery of swine flu in birds in Chile raises concerns about the spread of the virus, the UN warns.

联合国警告道,智利发生家禽类感染猪流感事件激起人们对病毒传播的顾虑。

Turkeys have caught swine flu in Chile
Turkeys have caught swine flu in Chile

Last week the H1N1 virus was found in turkeys on farms in Chile. The UN now says poultry1 farms(养鸡场,家禽场) elsewhere in the world could also become infected.

Scientists are worried that the virus could theoretically mix with more dangerous strains. It has previously2 spread from humans to pigs.

However, swine flu remains3 no more severe than seasonal4 flu.

Safe to eat

Chilean authorities first reported the incident last week. Two poultry farms are affected5 near the seaport6 of Valparaiso.

Juan Lubroth, interim7 chief veterinary officer of the UN Food and Agriculture Organization (FAO), said: "Once the sick birds have recovered, safe production and processing can continue. They do not pose a threat to the food chain."

Chilean authorities have established a temporary quarantine(隔离,封锁) and have decided8 to allow the infected birds to recover rather than culling9(挑选) them.

It is thought the incident represents a "spill-over" from infected farm workers to turkeys.

Canada, Argentina and Australia have previously reported spread of the H1N1 swine flu virus from farm workers to pigs.

Dangerous strains

The emergence10 of a more dangerous strain of flu remains a theoretical risk. Different strains of virus can mix together in a process called genetic11 reassortment or recombination.

So far there have been no cases of H5N1 bird flu in flocks in Chile.

However, Dr Lubroth said: "In Southeast Asia there is a lot of the (H5N1) virus circulating in poultry.

"The introduction of H1N1 in these populations would be of greater concern."

Colin Butter from the UK's Institute of Animal Health agrees.

"We hope it is a rare event and we must monitor closely what happens next," he told BBC News.

"However, it is not just about the H5N1 strain. Any further spread of the H1N1 virus between birds, or from birds to humans would not be good.

"It might make the virus harder to control, because it would be more likely to change."

William Karesh, vice12 president of the Wildlife Conservation Society, who studies the spread of animal diseases, says he is not surprised by what has happened.

"The location is surprising, but it could be that Chile has a better surveillance system(观测系统).

"However, the only constant is that the situation keeps changing."



点击收听单词发音收听单词发音  

1 poultry GPQxh     
n.家禽,禽肉
参考例句:
  • There is not much poultry in the shops. 商店里禽肉不太多。
  • What do you feed the poultry on? 你们用什么饲料喂养家禽?
2 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
3 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
4 seasonal LZ1xE     
adj.季节的,季节性的
参考例句:
  • The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
  • The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。
5 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
6 seaport rZ3xB     
n.海港,港口,港市
参考例句:
  • Ostend is the most important seaport in Belgium.奥斯坦德是比利时最重要的海港。
  • A seaport where ships can take on supplies of coal.轮船能够补充煤炭的海港。
7 interim z5wxB     
adj.暂时的,临时的;n.间歇,过渡期间
参考例句:
  • The government is taking interim measures to help those in immediate need.政府正在采取临时措施帮助那些有立即需要的人。
  • It may turn out to be an interim technology.这可能只是个过渡技术。
8 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
9 culling 3de85f6723726749ca816af963f0d3b5     
n.选择,大批物品中剔出劣质货v.挑选,剔除( cull的现在分词 )
参考例句:
  • The mathematicians turned to culling periodic solutions. 数学家们转而去挑选周期解。 来自辞典例句
  • It took us a week to find you, a week of culling out prejudice and hatred. 我们花了一个星期的时间找到你们,把偏见和憎恨剔除出去。 来自演讲部分
10 emergence 5p3xr     
n.浮现,显现,出现,(植物)突出体
参考例句:
  • The last decade saw the emergence of a dynamic economy.最近10年见证了经济增长的姿态。
  • Language emerges and develops with the emergence and development of society.语言是随着社会的产生而产生,随着社会的发展而发展的。
11 genetic PgIxp     
adj.遗传的,遗传学的
参考例句:
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
12 vice NU0zQ     
n.坏事;恶习;[pl.]台钳,老虎钳;adj.副的
参考例句:
  • He guarded himself against vice.他避免染上坏习惯。
  • They are sunk in the depth of vice.他们堕入了罪恶的深渊。
TAG标签: bird UN swine flu warn
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