www成人免费视频_91视频合集_久久久999久久久_91字幕网_91漂亮少妇露脸在线播放_77久久

食品伙伴网服务号
 
 
当前位置: 首页 » 专业英语 » 行业相关 » 正文

H5N1 bird flu virus is changing

放大字体  缩小字体 发布日期:2006-11-11

FAO and OIE recommend increased surveillance when vaccinating

According to a report in last week’s Proceedings of the National Academy of Sciences on the identification of a new H5N1 virus sublineage in poultry, this new virus sublineage, called Fujian virus, appears to have become the dominant strain of the H5N1 avian influenza circulating in parts of Asia. If the report is confirmed, this does not come as a surprise, FAO and the World Organisation for Animal Health (OIE) said today.

While there is a wide variety of avian influenza strains in animals, and influenza viruses in general have a high rate of change from season to season and from year to year, OIE Director-General Bernard Vallat and FAO’s Chief Veterinary Officer Joseph Domenech warn that with new antigens developing continually in avian influenza viruses, vaccines currently in use for poultry need to be assessed regularly.

The two organizations continue to recommend that vaccination control measures need to be accompanied by surveillance and post-vaccination monitoring. They also stressed the need to immediately report to veterinary authorities any unexpected poultry deaths.

Careful monitoring of vaccination campaigns recommended

Vaccination remains part of the FAO-OIE strategy to contain avian influenza and both organizations say that vaccination campaigns should be applied appropriately and carefully monitored according to FAO and OIE technical guidelines, including the use of a cold chain in order to protect the vaccine. Vaccination must be carried out along with other disease control measures, such as improved hygiene on the farm, animal movement management or market inspection and culling in case of outbreaks, said Dr Domenech.

According to Dr Vallat, “Commitment is needed from all governments to implement prevention and control programmes such as surveillance of virus circulation and, where appropriate, vaccination programmes in countries where the virus is endemic or where there is a high risk of introduction of the virus.”

FAO and OIE are already supporting such programmes in key countries where the virus is still circulating. But, they say more information on control programmes based on vaccination is needed and urge more research be funded to better understand the epidemiology and genetic changes of the H5N1 virus

Data sharing

FAO, the OIE and a myriad of scientific experts on avian influenza have repeatedly called upon scientists around the world to share their findings and virus strains in a timely and transparent fashion. The OIE/FAO Avian Influenza Laboratory Network with its secretariat in Padova, Italy (OFFLU - http://www.offlu.net) is a platform where member countries and scientists can share valuable information with the international veterinary and medical community. It is imperative that global health concerns and timely information sharing override lags in the scientific publications approval process, which may take from a few months to more that a year.

It is essential during outbreaks that pathogens, such as highly pathogenic avian influenza virus, be isolated from clinical cases and that any changes in the character of the virus be monitored to ensure that vaccine manufacturers are producing vaccines complying with OIE standards which are effective against virus strains in circulation, said Dr Domenech.

Should the changes be significant enough to warrant reformulation of the vaccine, FAO and the OIE say it would be in the best interest of global health for this to be done by national governments and commercial vaccine companies.

Scientists from such institutes as Istituto Zooprofilatico Sperimentale (Italy), Veterinary Laboratories Agency (UK), Southeastern Poultry Research Laboratory (USA), Australian Animal Health Laboratory, and Friedrich Loeffler Institute (Germany) have voiced their support for the FAO and OIE position that vaccine delivery alone is insufficient to halt virus circulation and to protect animal or human health.

“In an area where poultry populations have been vaccinated, well-planned serological studies must be conducted with full disclosure of the modalities of vaccination use in the poultry population, including the use of the cold chain and types of vaccines and date of last vaccination so results can be clearly interpreted,” Dr Vallat said.

更多翻译详细信息请点击:http://www.trans1.cn
 
[ 网刊订阅 ]  [ 专业英语搜索 ]  [ ]  [ 告诉好友 ]  [ 打印本文 ]  [ 关闭窗口 ] [ 返回顶部 ]
分享:

 

 
推荐图文
推荐专业英语
点击排行
 
 
Processed in 0.200 second(s), 19 queries, Memory 0.9 M
主站蜘蛛池模板: 国产精品a免费一区久久电影 | 农村乱人伦一区二区 | 亚洲综合国产一区在线 | 国产一级做a爱片久久毛片a | 欧美日韩三区 | 麻豆md0077饥渴少妇 | 亚洲av无码专区在线观看下载 | 亚洲最大成人网色 | 免费无遮挡无码视频网站 | 视频一区视频二区在线观看 | 国产一级片毛片 | 国产午夜福利视频在线观看 | 丰满少妇弄高潮了www | 高清二区 | 女人被做到高潮免费视频 | 中文字幕在线观看亚洲日韩 | 一级做a爰黑人又硬又粗视 一级做a爰片 | 欧美午夜精品一区二区三区电影 | 精品国产福利在线 | 男人天堂亚洲天堂 | 日本高清h色视频在线观看 日本高清va不卡视频在线观看 | 国产香蕉国产精品偷在线观看 | 久久精品无码中文字幕 | 人人妻久久人人澡人人爽人人精品 | 成人免费观看视频高清视频 | 欧美成人中文字幕 | 一本久久综合 | 久久国产精品久久国产片 | 亚洲免费视频在线 | 国产成人在线免费视频 | 亚洲成av人片无码天堂下载 | 日韩视频精品 | 特级淫片aaaa毛片aa视频 | 亚洲国产成人精品91久久久 | 国产成人精品aaaa视频一区 | 五月天精品视频在线观看 | 国产乱xxxxx97国语对白 | 牛牛精品在线 | 日韩欧美群交p片內射中文 日韩欧美人妻一区二区三区 | 成年女人18级毛片毛片免费 | 成人 在线播放 |