单词：lyssavirus rabies virus of human
单词：lyssavirus rabies virus of human 相关文章
Carnivores Spread Distemper to Lions New research shows that dogs are no longer the primary source of a disease that has infected and killed lions in Tanzania. Canine distemper now appears to be spread mostly by other carnivores, such as hyenas, jack
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Under the influence of rabies, even docile animals often become dangerously aggressive and bite without provocation. Since the virus often concentrates in the saliva of the infected animal, a single bite can pass it on directly into the blood of the
国家地理2007年
SCIENCE IN THE NEWS - Killer Virus Brought Back From the Past, With the Hope to Avoid a New One By Cynthia Kirk and Caty Weaver Broadcast: Tuesday, October 18, 2005 (MUSIC) VOICE ONE: This is SCIENCE
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WHO Confirms Bird Flu Virus Caused Human Deaths in Vietnam Katherine Maria The World Health Organization has confirmed that at least three people have died of bird flu in Vietnam, the same virus that
VOA2004（上）--各类新闻
Experts Study Possible Human-to-Human Bird Flu Case in Vietnam Katherine Maria The World Health Organization says experts looking at human cases of bird flu cannot rule out the possibility that it spr
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AUDIE CORNISH, HOST: Public health officials are increasingly worried about a strain of bird flu virus that's circulating in China. In the last nine months it's sickened more than 700 people, and about 40 percent of them died. Now a team of researche
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