久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

  Home>News Center>China
       
 

New bird flu vaccine capable of prevention
By Zhao Huanxin (China Daily)
Updated: 2005-02-07 02:00

Chinese scientists claim to have developed a vaccine to prevent the spread of the killer bird flu.

A Vietnamese farmer displays ducks for sale at a roadside market in Vietnam's Long An province February 6, 2005. [Reuters]
The Ministry of Agriculture says its new vaccine can effectively "cut a key link in the transmission chain of the highly pathogenic avian influenza among water fowl."

Using a technique called reverse genetics, scientists at the Key Laboratory of Animal Influenza, affiliated to Harbin Veterinary Research Institute, altered the genome sequence of the virus to construct a vaccine that is believed to be safe to both poultry and mammals.

The vaccine will be administered to fowls in the country's key water areas, including rivers and lakes, a ministry statement released yesterday.

Laboratory tests show the vaccine enables ducks and geese to fight H5N1, the highly lethal strain of bird flu, three weeks after the flocks were vaccinated, the statement claimed.

The new vaccine also provides at least 10 months of protection for chickensfour months longer than the existing bird flu preventive drugs.

"China has developed and mass-produced shots targeting H9 and H5N2, the less dangerous subtypes of avian influenza," Xu Shixin, a division director of the Veterinary Bureau of the Ministry of Agriculture, said yesterday.

The bureau has released a certificate for the new vaccine as a registered veterinary drug.

Ministry sources said the new vaccine had overcome the bottleneck in the technology of developing a remedy for preventing "highly pathogenic bird flu."

Apart from the encouraging laboratory test results, field tests also indicate that upon receiving two shots of the vaccine, ducks and geese can each produce antibodies effective for 10 months and three months, respectively.

The birds could then fight the H5N1 strain of virus.

"The vaccination thus makes it impossible for ducks and geese to become the load of H5 subgroup bird flu virus. Therefore, it can cut a key link for the highly pathogenic avian influenza to spread," said the ministry statement.

China developed advanced bird flu virus test technology (RT-PCR reagent kit) last April. This can detect H5, H7 and H9 subgroups of the bird flu simultaneously in several hours.

Vaccination is a must for water fowls and poultry farms in Chinese regions at high risk, according to a national tele-conference in bird flu prevention on January 28 in Beijing.

Elsewhere in Asia, the Cambodian Ministry of Health and the World Health Organization (WHO) confirmed on Saturday a 25-year-old woman from Kampot Province, who died of respiratory illness in Viet Nam on January 30, was infected with avian influenza.

This is the first human case of avian influenza in Cambodia, according media reports.

Hundreds of wild birds have died of avian influenza in central Thailand in the past two weeks.



 
  Today's Top News     Top China News
 

New bird flu vaccine capable of prevention

 

   
 

EU not to impose quota on Chinese textiles

 

   
 

Bush's 05 budget to tighten Americans' belt

 

   
 

Top banker: China on track to renminbi reform

 

   
 

China to stop use of non-donated blood

 

   
 

Rice: US disagrees with EU on arms embargo

 

   
  Wanted gambler captured on train
   
  China to stop use of non-donated blood
   
  New bird flu vaccine capable of prevention
   
  Half of all fireworks do not meet standards
   
  Charter flights carry 698 passengers
   
  Half of all fireworks do not meet standards
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  Related Stories  
   
Guangdong geared up for flu
   
Guangdong guards against bird flu
   
Vietnam asks for international help to tackle bird flu
   
Vietnam reports 12th death from bird flu in past month
   
Health experts watching bird flu evolution
   
Bird flu death toll in Vietnam rises to 11
   
China step up efforts to gird for bird flu
  News Talk  
  It is time to prepare for Beijing - 2008  
Advertisement
         
主站蜘蛛池模板: 久久九九亚洲精品 | a级毛片无码免费真人 | 国产自约视频 | 精品国产一区二区三区在线观看 | 亚洲国产成人久久笫一页 | 久久免费精品视频在线观看 | 亚洲男人天堂久久 | 免费成年网站 | 最近手机高清中文字幕大全7 | 一区二区三区免费视频播放器 | 深夜福利国产 | 欧美日本一道道一区二区三 | 成人国产第一区在线观看 | 亚洲精品国产精品国自产网站 | 欧美一级鲁丝片 | av毛片在线看 | 精品国产v无码大片在线观看 | 最新亚洲精品 | 黄色免费在线观看视频 | 这里只有久久精品视频 | 亚洲免费观看 | 午夜国产精品不卡在线观看 | 99久久免费精品国产免费高清 | 国产福利久久 | 亚洲天堂久久新 | 国产在线a | 亚洲在线视频观看 | 狠狠综合久久久久综合 | 99久久久免费精品免费 | 亚洲一区二区精品视频 | 国产欧美在线观看不卡 | 精品国产一区二区在线观看 | 在线观看片成人免费视频 | 欧美亚洲一级片 | 免费一区区三区四区 | 日本韩国一级毛片中文字幕 | 国产黄色网 | 在线播放性xxx欧美 在线播放亚洲视频 | 久久精品成人一区二区三区 | 狠狠色综合色综合网站久久 | japanese 色系 tube日本 |