<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Center

          H5N1 virus may have mutated

          By Teddy Ng and Chen Hong (China Daily)
          Updated: 2006-06-17 09:01
          Large Medium Small

          The latest human bird flu infection on the Chinese mainland is worrying as it shows the H5N1 virus may have mutated and become as infectious in warm months as in cooler ones, Hong Kong's health chief said on Friday.

          The virus thrives in lower temperatures and is usually most infectious in the cooler months between October and March.

          But confirmation on Thursday that a 31-year-old truck driver in the southern city of Shenzhen has been infected has caused uneasiness.

          "Is this because the virus has changed, so that it is highly infectious all year round? Or, if it is happening in summer, winter would be even worse?" said the Secretary for Health, Welfare and Food, York Chow.

          He said the virus might have become "more virulent and spread wider than we've expected," though its mutation was not confirmed.

          "If that is the case, the risk for humans to be infected in the future is higher," he added.

          The truck driver was admitted to hospital and was critically ill on Friday. He had visited a market where live poultry was sold and eaten chicken before he fell ill. But he is not known to have had any other close contact with poultry.

          University of Hong Kong microbiology head Yuen Kwok-yung said the Shenzhen case was abnormal and worried the disease would spread in winter.

          "If there are human infections from June to August, it means the virus is extremely active. I am worried that a major outbreak will happen in winter," he said.

          In neighbouring Shenzhen, authorities have stepped up virus prevention and surveillance efforts.

          The local government said it will now report the situation relating to human bird flu cases every day.

          The Shenzhen Centre for Disease Control and Prevention has been asked to enhance its surveillance of any pneumonia-like cases.

          So far the city has not reported any poultry infections.

          But vendors said they are required to disinfect shelves twice a day and stop on-the-spot slaughtering. Some supermarkets have stopped selling live chickens.

          "Business is really bad. I didn't even sell one chicken today," said a vendor at a Xiangmei Road market.

          主站蜘蛛池模板: av日韩精品在线播放| 亚洲熟女精品一区二区| 日产一二三四乱码| 国产人伦精品一区二区三| 成人无码h真人在线网站| 猫咪AV成人永久网站在线观看| 日本一区二区三区视频一| 无码成人AV在线一区二区| 日韩午夜午码高清福利片| 一面膜上边一面膜下边视频| 亚洲の无码国产の无码步美| 乱码午夜-极品国产内射| 亚洲精品美女久久久久9999 | 真实单亲乱l仑对白视频| 久操线在视频在线观看| 久久99精品中文字幕| 国产亚洲精品AA片在线播放天| 久久精品亚洲国产成人av| 99福利一区二区视频| av一区二区三区亚洲| 高清在线一区二区三区视频| 亚洲中文字幕无码一久久区| 亚洲男人电影天堂无码| 最新精品国偷自产在线| 国产精品青草久久久久福利99 | 久久精品道一区二区三区| 国产精品色三级在线观看| 亚洲欧美一区二区三区日产| 麻豆蜜桃伦理一区二区三区| 中文成人无字幕乱码精品区| 高潮喷水抽搐无码免费| 国产精品无码素人福利不卡| 亚洲av日韩av一区久久| 亚洲综合小说另类图片五月天 | 精品人妻二区中文字幕| 亚洲中文精品人人永久免费| 91中文字幕一区二区| 2021中文字幕亚洲精品| 国产精品人妻中文字幕| 大地资源免费视频观看| 亚洲 日本 欧洲 欧美 视频|