标签：天花疫苗 相关文章
This is the VOA Special English Health Report. When parents go to work, their young children often spend the day in child care. That contact with other children can make it easier to get sick. But new research suggests that this might have a protecti
2010年VOA慢速英语(十二)月
AZUZ: The mumps virus is spreading so fast at Harvard University that officials are saying it could affect the school's commencement ceremony on May 26th. At least 40 people there have come down with mumps over the past two months. The local health d
CNN美国有线新闻2016年7月
DAVID GREENE, HOST: More than two months since an Ebola outbreak was declared in an eastern part of the Democratic Republic of Congo, health officials are still struggling to end it. So far, at least 130 people have been infected. Last week, the Worl
2018年NPR美国国家公共电台10月
AZUZ: And a flu strain circulating in the U.S. this year, like the one that hit Australia last year, is a nasty one. Widespread flu activities are being reported in every part of the continental U.S. at the same time. This is the first year that's ha
CNN美国有线新闻2018年1月
Everyfall, you need a new flu shot. Let's consider these vaccines training ourimmune system, the recognize specific strains of flu. Identifying by two protein on the virus coat, hem agglutinin(血细胞凝集素) and neuraminidases(神经氨酸酶).
Scientific American(十二)月
This is the VOA Special English Health Report. The Lancet, a leading British medical journal, has withdrawn a study that scared many parents and angered many experts. The study, published twelve years ago, suggested a link between autism and the vacc
2010年慢速英语(二)月
Health Report - People With Chronic Hepatitis B Often Do Not Know It 健康报道 - 乙肝的传播和防治 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 Today we answer a question. Vu Quang Hien fro
2011年VOA慢速英语(五)月
Experts: Polio Could Again Spread Worldwide Thanks to an effective vaccine, the polio virus has disappeared from most of the world. But, a few cases remain in areas that are among the most difficult to reach. 得益于一种有效的疫苗，脊髓灰质
2018年VOA慢速英语(七)月
More than 250 million children have been immunized. And...five million deaths have been prevented with that kind of support. Those are phenomenal sums. The Bill and Melinda Gates Foundation Friday pledged $10 billion dollars over the next 10 years to
VOA标准英语2010年(一月)
In 2011, scientists discovered they had created a highly contagious and deadly form of H5N1 commonly called avian or bird flu. When the discovery was announced, debate erupted over whether the research was ethical and fears the new strain could be us
VOA双语新闻 2012年1月
Each year, scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season. Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety. Now,
VOA双语新闻 2010年7月
美国新埃博拉病例加深恐慌 U.S. health officials are scrambling to respond to a new Ebola case - that of a nurse in Dallas, Texas, who cared for Ebola patient Thomas Eric Duncan, who died last week. Americas medical community is reviewing a
VOA双语新闻 2014年10月
Upper-Intermediate - Planning For The Worst (D0025) A: Well, right, lets move to our next order of business,as many of you are aware, in recent weeks there has been a lot of media coverage surrounding this bird flu issue. And its come to my attention
纯正地道美语
DEVELOPMENT REPORT - Ebola and Marburg Vaccines Protect Monkeys, Maybe Also People By Jill Moss Broadcast: Monday, June 20, 2005 I'm Gwen Outen with the VOA Special English Development Report. To avoi
农业与发展
1.Helicopters dropped water overnight in a wildfire raging in Southern California in the foothills above Santa Barbara. 1,200 homes have been evacuated, no structures have been lost so far, but flames are within a half mile of some neighborhoods. 2.
美联社新闻一分钟2009年(五)月
我们通常会把那些总有很多无谓担忧的人形容为杞人忧天。其实，人生苦短，与其整日担忧，倒不如行动起来把今天好好装扮。但就是有那么多人想不开，不是担心天会塌下来，就是担心自己
美国俚语
今天我们一起听访美精彩瞬间。有白宫欢迎仪式上奥巴马的段子、国宴上引用中国古话、更有Peng马麻在联合国的动人英语发言。快听节目，感受领导人的魅力吧。 关键词： State visit: 国事访问
美国文化脱口秀
In Congo, Ebola claims the lives of 60 percent of those who get the virus. The disease is so devastating, even those who survive it are shunned. Really makes it frightening is the high mortality rate, the very severe symptoms that people experience.
VOA标准英语2019年(二月)
本期内容： American scientists announced that they had cloned the Zika virus. This is an important stage in producing a safe version of the pathogen to be used in a vaccine against the mosquito-borne illness, which has been linked to brain defor
夏说英语新闻晨读
I'm John Macintosh with the BBC News. Hello. Researchers in the United States have warned that it could take a decade for a vaccine against the Zika virus to be made available. Scientists at the University of Texas say most of the time will be taken
中英双语新闻