伊波拉病毒疫苗研制成功

伊波拉病毒疫苗研制成功 精品文档 伊波拉病毒疫苗研制成功 伊波拉病毒疫苗研制成功 ScientistshavedevelopedavaccinethatprotectsmiceagainstadeadlyformoftheEbolavirus.科学家研制出一种疫苗， 可以保护老鼠免受Scientists have developed a vaccine that protects mice against a deadly form of the Ebola virus. 科学家研制出一种疫苗，可以保护老鼠免受致死伊波拉病毒 的伤害。 Around 1,200 people have died of Ebola virus infection since 1976 First identified in 1976, Ebola kills more than 90% of the people it infects. The researchers say that this is the first Ebola vaccine to remain viable long-term and can therefore be successfully stockpiled. The results are reported in the journal Proceedings of National Academy of Sciences. Ebola is transmitted via bodily fluids, and can become airborn. Sufferers experience nausea(恶心，晕船) , vomiting, internal bleeding and organ failure before 1 / 3 精品文档 they die. Although few people contract Ebola each year, its effects are so swift and devastating that it is often feared that it could be used against humans in an act of terroism. All previously developed vaccines have relied on injecting intact, but crippled, viral particles into the body. Long-term storage tends to damage the virus, paralysing the vaccine's effectiveness. The new vaccine contains a synthetic viral protein, which is capable of recognising the Ebola virus and is much more stable when stored long-term. The vaccine protects 80% of the mice injected with the deadly strain, and survives being "dried down and frozen," said biotechnologist Charles Arntzen from Arizona State University who was involved in its development. He said the next step is to try the vaccine on a strain of Ebola that is closer to the one that infects humans. 上一篇英语: 宇宙中发现类地行星Kepler 22-b下一篇英 2 / 3 精品文档 语: 男性大脑结构可能因初夜而改变查看更多关于科技Science的文章网友同时还浏览了: 什么是雅思机经,如何巧用雅思机 雅思写作评分任务完成情况 雅思写作评分标准:连贯与衔接 雅思写作评分标准:词汇资源 雅思写作评分标准:语法的多样性 雅思考试合格标准 3 / 3