天花疫苗

SSS 2008-08-19

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(61) / 评论(0)

Scientific American(八)月

SCIENCE IN THE NEWS - Killer Virus Brought Back From the Pas

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

发表于:2019-01-02 / 阅读(59) / 评论(0)

科技之光

WHO Confirms Bird Flu Virus Caused Human Deaths in Vietnam

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

发表于:2019-01-07 / 阅读(59) / 评论(0)

VOA2004（上）--各类新闻

New Test for West Nile Virus

by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex

发表于:2019-01-09 / 阅读(73) / 评论(0)

VOA2003（下）-环境与健康

Deadly pigeon virus found in Victoria of Australia

CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the

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英语新闻

VOA标准英语2008年-Polio Virus Spreading in 2 Indian States

By Steve Herman New Delhi 01 January 2008 India remains one of the few countries where polio has not been eradicated. Most of the world's new cases are reported in the subcontinent. While the total number of cases dropped in India last year, VOA cor

发表于:2019-02-12 / 阅读(66) / 评论(0)

VOA标准英语2008年（一月）

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Bacillus smaragdinus phosphorescens

bait and switches

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