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Cathy Majtenyi Experts from the World Health Organization (WHO) are in southern Sudan investigating 15 cases of an Ebola-like hemorrhagic fever that has so far claimed at least four lives. There are f

发表于:2018-12-08 / 阅读(139) / 评论(0) 分类 VOA2004(上)--国际时事

Chinese veterinary experts say the outbreak of the H7N9 bird flu virus has not triggered an epidemic among poultry. The virus has been detected in chickens, pigeons and environmental samples in poultry markets in Shanghai. Researchers have yet to mak

发表于:2018-12-19 / 阅读(49) / 评论(0) 分类 英闻天下

Ebola outbreaks before the most recent one have been fairly contained: geographically limited, and just a couple hundred cases. The latest outbreak, though, which started in late 2013 and lasted more than two years, was entirely different. There were

发表于:2018-12-24 / 阅读(33) / 评论(0) 分类 2016年Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Some people never forget a face. Others never forget a flu. Even if they were infected more than 90 years ago. A team of American scientists studied 32 p

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(八)月

At the 18th International AIDS Conference in Vienna, a new report outlines the challenges and opportunities facing vaccine researchers. The report The Road to Prevention is called a scientific strategic plan to help end the epidemic. The Global HIV V

发表于:2019-01-13 / 阅读(37) / 评论(0) 分类 VOA标准英语2010年(七)月

US Ebola Fears Spread Faster Than Virus For Americans, Ebola started out as a disease in a far away continent, but then a man from Liberia died from Ebola in a Dallas hospital, and things changed. Ebola was on American soil. Fears heightened, and the

发表于:2019-01-14 / 阅读(33) / 评论(0) 分类 VOA标准英语2014年(十月)
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