<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
          WORLD> America
          Official: US has first death from swine flu
          (Agencies)
          Updated: 2009-04-29 19:01

          Authorities sought to keep the crisis in context: Flu deaths are common around the world. In the U.S. alone, the CDC says about 36,000 people a year die of flu-related causes. Still, the CDC calls the new strain a combination of pig, bird and human viruses for which people may have limited natural immunity.

          Full coverage:
          Official: US has first death from swine flu Swine Flu Outbreak

          Related readings:
          Official: US has first death from swine flu At least 5 hospitalized in US with swine flu
          Official: US has first death from swine flu Officials say US deaths expected from swine flu

          Hence the need for a vaccine. Using samples of the flu taken from people who fell ill in Mexico and the U.S., scientists are engineering a strain that could trigger the immune system without causing illness. The hope is to get that ingredient — called a "reference strain" in vaccine jargon — to manufacturers around the second week of May, so they can begin their own laborious production work, said CDC's Dr. Ruben Donis, who is leading that effort.

          Vaccine manufacturers are just beginning production for next winter's regular influenza vaccine, which protects against three human flu strains. The WHO wants them to stay with that course for now — it won't call for mass production of a swine flu vaccine unless the outbreak worsens globally. But sometimes new flu strains pop up briefly at the end of one flu season and go away only to re-emerge the next fall, and at the very least there should be a vaccine in time for next winter's flu season, Dr. Anthony Fauci, the National Institutes of Health's infectious diseases chief, said Tuesday.

          "Right now it's moving very rapidly," he said of the vaccine development.

          Besser appeared on NBC's "Meet the Press," CNN and CBS's "The Early Show."

             Previous page 1 2 3 Next Page  

          主站蜘蛛池模板: 国产最大的福利精品自拍| 一本色道久久—综合亚洲| 中文字幕一区日韩精品| 国产资源站| 成人亚洲av免费在线| 国产日韩欧美一区二区东京热| 日韩卡一卡2卡3卡4卡| 欧美做受视频播放| 亚洲Av综合日韩精品久久久 | 漂亮的保姆hd完整版免费韩国| 久久人妻国产精品| 国产普通话对白刺激| 亚洲熟妇少妇任你躁在线观看无码| 国产成人一区二区三区免费| 欧美性大战久久久久XXX| 高清偷拍一区二区三区| 中文字幕乱码亚洲美女精品| 九九久久亚洲精品美国国内| 欧产日产国产精品精品| 天天爽天天摸天天碰| 精品国产乱码久久久久夜深人妻| 97精品人妻系列无码人妻| AV老司机AV天堂| 神马午夜久久精品人妻| 青青草国产线观看| 无码人妻专区免费视频| 亚洲成av人片无码天堂下载 | 国产精品无遮挡一区二区| 国产成人一区二区三区在线| 亚洲国产精品毛片av不卡在线| 亚洲精品国产aⅴ成拍色拍| 国产va免费精品观看精品| 又大又粗欧美成人网站| 在线观看亚洲AV日韩A∨| 十八禁午夜福利免费网站| 83午夜电影免费| 国产精品有码在线观看| 久久99精品久久久久久动态图 | 精品无码人妻| 综合激情网一区二区三区| julia无码中文字幕一区|