www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Society

H7 infections rare in people until now: expert

By Jin Zhu | China Daily | Updated: 2013-04-18 01:36

H7 infections rare in people until now: expert

Infrared temperature measuring devices are used at Guangzhou Baiyun Airport on Wednesday as a preventive measure against the H7N9 bird flu virus. LIU DAWEI / XINHUA

Human infections with influenza-A H7 viruses, a virus group that normally circulates among birds, have been rare until now, according to a researcher at Harbin Veterinary Research Institute under the Chinese Academy of Agricultural Sciences.

Tian Guobin said that in addition to human infections with H7N9 — one subgroup among the larger group of H7 viruses recently reported from China — some H7 strains, such as H7N7, H7N3 and H7N2, have in the past infected humans in other countries, including the UK, the US, the Netherlands and Canada.

The H7N9 virus was first isolated in turkeys in the US state of Minnesota in 1988, he said.

Since then, the virus has been found in ducks, geese, guinea fowls and wild birds in Sweden, the Czech Republic, Spain, Mongolia, South Korea and elsewhere, according to the institute.

But humans seemed unaffected by the H7N9 virus until recently in China.

The world's first bird flu outbreak was in Italy in 1878.

All poultry and wild birds are likely to be infected with bird flu virus, Tian said.

So far, about 90 species of birds worldwide have been found to carry bird flu viruses.

These viruses have also been found in seals, whales, tigers, horses and pigs, according to the institute.

Bird flu viruses cannot be transmitted by consuming well-cooked poultry, eggs and related products because high temperatures kill the virus, Tian said.

But people should keep raw food separate from cooked food to avoid spreading any viruses from raw food, he said.

Tian urged local poultry farms to strengthen biosecurity measures, which is essential for keeping farms disease-free.

 

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 色视频www在线播放国产人成 | 亚洲一区二区三区精品视频 | 久久久久久免费一区二区三区 | 男女晚上爱爱的视频在线观看 | 中文字幕乱码无线码在线 | 国产精品免费观在线 | 老司机毛片 | 996久久国产精品线观看 | 波多野结衣视频免费观看 | 亚洲欧洲无码一区二区三区 | 一级特黄aa大片欧美网站 | 久久免费视频6 | 国产午夜不卡在线观看视频666 | 日韩中文字幕在线亚洲一区 | 欧美成人性色生活片免费在线观看 | 免费 成年人 | 日本免费不卡在线一区二区三区 | 国产精品青草久久福利不卡 | 国产在线a | 玖玖玖视频在线观看视频6 玖玖影院在线观看 | 成人区精品一区二区不卡亚洲 | 在线播放精品 | 国产农村乱子伦精品视频 | 久草视频资源在线观看 | 777色狠狠一区二区三区 | 日本三片在在线播放 | 男女视频在线观看免费 | 亚色成人 | 夜间福利网站 | 国产欧美日韩在线一区二区不卡 | 国产精选在线视频 | 69性欧美 | 日本wwxx色视频 | 国产精品视频免费观看调教网 | 国产成人a一区二区 | 高清不卡日本v在线二区 | 国产日产欧美精品一区二区三区 | 国产成人综合91精品 | 国产一级免费片 | 亚洲在线观看免费 | 亚洲成人第一 |