<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
           
            | Home | News| Living in China| MMS | SMS | About us | Contact us|
             
           Language Tips > VOA Special speed news

          How do vaccines reach the developing world?

           

           Listen to this story

          I'm Steve Ember with the VOA Special English Development Report.

          Several weeks ago, we reported about two vaccines to protect young children against a common cause of intestinal infection. Studies showed the vaccines were effective against the disease rotavirus. Rotavirus is a leading killer of young children in the developing world. More than five hundred thousand die from it each year. Rotavirus can cause severe diarrhea, or watery wastes. The loss of fluids robs them of salts and body fluids.

          Last month, the United States Food and Drug Administration approved one of the vaccines, called RotaTeq. Also, an advisory committee suggested that RotaTeq be given to all babies. The committee sets vaccination policy in the United States.

          The drug maker Merck and company manufactures RotaTeq. The company says RotaTeq should be given three times to babies between the ages of six and thirty-two weeks. Merck plans to sell a single treatment of the vaccine for about sixty-two dollars. The complete treatment would cost more than one hundred eighty dollars. This would make RotaTeq one of the most costly vaccines ever sold. Critics say many poor people will suffer because the price is too high.

          Merck has stated that it will offer RotaTeq to developing countries at reduced prices. However, the company does not expect any action until a study of the vaccine is completed in Africa and Asia. Merck hopes the study will begin by the end of this year.

          Getting new drugs and vaccines into developing countries has become an international issue. Several methods have proven effective. For example, developing countries can import less costly copies of the drugs or negotiate reduced prices with drug makers. Also, rich nations, aid groups or other organizations can buy drugs at reduced prices. They can then provide them free or at a low cost to developing countries.

          Drug makers can also agree to let manufacturers in developing counties produce copies. One example is the Swiss-based drug maker Roche. Roche has offered technical help to companies in developing countries for production of the drug Saquinavir. It is used to treat persons infected with the virus that causes the disease AIDS.

          Merck says it is investigating a number of methods to see how best to get RotaTeq to children in the developing world.

          This VOA Special English Development Report was written by Jill Moss. I'm Steve Ember.

          Vocabulary:

           

           
          Go to Other Sections
          Story Tools
           
          Copyright by chinadaily.com.cn. All rights reserved

          版權(quán)聲明:未經(jīng)中國日報網(wǎng)站許可,任何人不得復(fù)制本欄目內(nèi)容。如需轉(zhuǎn)載請與本網(wǎng)站聯(lián)系。
          None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited.
           

           

          主站蜘蛛池模板: 一本大道无码高清| 性大毛片视频| 色综合色综合色综合频道| 日韩av一区二区三区在线| 国产台湾黄色av一区二区| 亚洲午夜爱爱香蕉片| 亚洲 制服 丝袜 无码| 欧美一区二区三区啪啪| 亚洲AV成人无码久久精品四虎| 亚洲a人片在线观看网址| 国产AV午夜精品一区二区三区| 97夜夜澡人人双人人人喊| 日本熟妇色xxxxx| 被绑在坐桩机上抹春药| 麻豆精品一区二区视频在线| 久久精品丝袜高跟鞋| 欧美 亚洲 另类 丝袜 自拍 动漫| 国产精品久久久久9999| 黑人巨大精品oideo| 亚洲欧美日产综合在线网| 午夜免费啪视频| 亚洲精品日韩久久精品| 国产伦一区二区三区精品| 久久精品一本到99热免费| 国产二级一片内射视频插放 | 久久先锋男人AV资源网站| 久久www免费人成看| av在线播放国产一区| 成人亚洲精品久久久久| 丰满无码人妻热妇无码区| 男女肉粗暴进入120秒视频| 天天躁日日躁狠狠躁2018| 日韩精品视频免费久久| 久热99热这里只有精品| 亚洲国产一区二区三区最新| 国产视频一区二区在线看| 天美传媒xxxxhd videos3| 国产一区二区亚洲一区二区三区| 精品国产AⅤ无码一区二区| 日韩av爽爽爽久久久久久| 久久精品国产亚洲AV麻|