Vaccine - a planned exposure to an antigen in order that memory B lymphocytes can retain a memory for it. In practice the organism carrying the antigen is either killed or modified so that it does not

发表于:2019-01-03 / 阅读(265) / 评论(0) 分类 医务英语

After getting your flu shot, did you know it takes about two weeks to develop an immunity? Its true. You can test your knowledge on more flu facts by taking this quiz. Here it goes. True or false: The flu isnt serious. Thats false. You can have compl

发表于:2019-01-07 / 阅读(70) / 评论(0) 分类 万花筒2011年

Rising fear over an outbreak, a new and dangerous strain of the bird flu so far contained to China. But tonight right here in the US, top scientists are now raising a development of vaccine. And if theyre concerned, how concerned should the rest of u

发表于:2019-01-07 / 阅读(83) / 评论(0) 分类 万花筒2013年

The top UN official in Afghanistan Kai Eide is acknowledging that there was, what he called, widespread fraud in the country's recent presidential election. But Eide would not be more specific about how much fraud occurred. Any specific figure at th

发表于:2019-01-08 / 阅读(222) / 评论(0) 分类 2009年NPR美国国家公共电台10月

This is the VOA Special English Health Report. Vaccines and chest compressions are both ways to save lives. Now, separate new reports say each could save more lives if they were used more. One report is from the International Federation of Red Cross

发表于:2019-01-12 / 阅读(67) / 评论(0) 分类 2010年VOA慢速英语(九)月

Untreatable New Forms of TB Raising Alarm The World Health Organization (WHO) lists 69 countries that have reported what is officially called extensively drug-resistant tuberculosis (XDR-TB). It's a form of the mycobacterium that, like the one report

发表于:2019-01-13 / 阅读(57) / 评论(0) 分类 VOA标准英语2012年(一月)

Doctors warn intentional infection not a good idea Alex Villarreal | Washington, DC 17 December 2009 CDC says the best step to protection is vaccination Many Americans are doing all they can to avoid the H1N1 virus. But talk in the news and on the In

发表于:2019-01-13 / 阅读(111) / 评论(0) 分类 VOA标准英语2009年(十二月)

A new study suggests vaccinating children against disease first could help protect the surrounding community. Related Links Full Article Scientists have long believed that immunizing some members of a community against a disease would protect the ent

发表于:2019-01-13 / 阅读(79) / 评论(0) 分类 VOA标准英语2010年(三月)

Promising Target For Malaria Vaccine Identified British researchers have discovered a biochemical key used by the malaria parasite to invade human blood cells. The discovery could pave the way for an effective malaria vaccine. The Plasmodium malaria

发表于:2019-01-13 / 阅读(111) / 评论(0) 分类 VOA标准英语2011年(十一月)

New Immunization Effort Launched Over the next three months, about 50 million young people in seven African countries will be vaccinated against meningitis. Its part of larger campaign to eliminate the disease in 26 at-risk countries. Meningitis is a

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2012年(十月)

A new polio vaccine gives hopes that the disease can be completely eradicated. Polio can cause severe deformities and paralysis in children. The number of polio cases worldwide has dropped by over 99 percent in recent years because of a global vaccin

发表于:2019-01-14 / 阅读(75) / 评论(0) 分类 VOA标准英语2010年(十一)月

Deaths from tuberculosis are increasing in the developing world and especially in Africa. It's the world's second deadliest infectious disease after HIV/AIDS. In 2008, nearly two million people died of TB and researchers warn that mortality rates wil

发表于:2019-01-14 / 阅读(259) / 评论(0) 分类 VOA标准英语2010年(十一)月

Researchers: Immunization Efforts Falling Short Researchers said that despite progress immunizing African children against disease, vaccination efforts are falling far short of whats needed. They warn that vaccine supply and cost need urgent attentio

发表于:2019-01-14 / 阅读(76) / 评论(0) 分类 VOA标准英语2013年(三月)

Sequestration Puts Malaria Vaccine Trial in Jeopardy No buzz is heard. But you can almost feel the vibration of 10,000 mosquitoes. Instinctively, you scratch, even though no insect is freely flying. The females are attracted to body heat to feed on b

发表于:2019-01-14 / 阅读(66) / 评论(0) 分类 VOA标准英语2013年(三月)

促进医疗创新实现全球健康目标 This September will mark the end of the U.N. Millennium Development Goals and the beginning of the Sustainable Development Goals. One of the proposed 17 goals calls for ensuring healthy lives and promoting w

发表于:2019-01-14 / 阅读(109) / 评论(0) 分类 VOA标准英语2015年(十二月)

ARI SHAPIRO, HOST: The flu season is bad this year. That's the message today from the Centers for Disease Control and Prevention. NPR health correspondent Rob Stein is here with details. Hey, Rob. ROB STEIN, BYLINE: Oh, hey, Ari. SHAPIRO: Health offi

发表于:2019-01-16 / 阅读(80) / 评论(0) 分类 2018年NPR美国国家公共电台1月

There are some antiviral drugs that doctors may use to treat influenza. Each year, medical researchers work to develop vaccines to prevent the flu from infecting people. No one knows yet exactly how much protection the vaccine provided people this fl

发表于:2019-01-22 / 阅读(82) / 评论(0) 分类 英语时差8,16

In Bourmor the hospital fought flu with 70s disco. Everybody is Kung-flu fighting. In Birming north London, it was a festive number. I don't want a Christmas with flu. And in Birmingham, they roped in Boxer to convince staff to have the jab. The heav

发表于:2019-01-30 / 阅读(66) / 评论(0) 分类 英伦广角

DEVELOPMENT REPORT - Effort to End Polio by 2005 Continues By Jill Moss Broadcast: Monday, January 26, 2004 This is the VOA Special English Development Report. Ending polio before the end of this year

发表于:2019-01-30 / 阅读(77) / 评论(0) 分类 农业与发展

DEVELOPMENT REPORT - Gates Foundation Gives $750 Million to Vaccines Alliance; $43 Million Goes to Malaria Drug Project By Jill Moss Broadcast: Monday, February 07, 2005 I'm Gwen Outen with the VOA Sp

发表于:2019-01-30 / 阅读(82) / 评论(0) 分类 农业与发展