活病毒疫苗

Technology Report - New Research Hopes to Speed Development of HIV Vaccine This is the VOA Special English Technology Report. A team of scientists in the United States has created a new type of mouse that has an immune system similar to that of human

发表于:2018-12-07 / 阅读(96) / 评论(0) 分类 2012年VOA慢速英语(八)月

The World Health Organization says about 500,000 people die every year from seasonal flu. To combat that, doctors recommend getting a flu vaccine at the beginning of each flu season and researchers are now working on a universal vaccine that could pr

发表于:2018-12-16 / 阅读(111) / 评论(0) 分类 VOA标准英语2010年(十二)月

Researchers say the H7N9 virus is a genetic reassortment of viruses carried by migratory birds from South Korea, other East Asian regions, and chickens from east China. The mingle of the viruses is likely to have occurred in east China's Yangtze Rive

发表于:2018-12-19 / 阅读(98) / 评论(0) 分类 英闻天下

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(138) / 评论(0) 分类 科技之光

From VOA Learning English, this is the Health Lifestyle report. An outbreak of a brain-destroying virus is currently happening in the Kerala state of India. The number of people who have died from Nipah is relatively small. Officials from Indias Mini

发表于:2019-01-03 / 阅读(115) / 评论(0) 分类 2018年VOA慢速英语(六)月

Health workers say an experimental vaccine may help to stop the spread of Ebola virus disease in the Democratic Republic of Congo. The vaccine is called V920. The drug maker Merck has shipped about 8,600 doses of V920 to the northeastern DRC. The Wor

发表于:2019-01-03 / 阅读(114) / 评论(0) 分类 2018年VOA慢速英语(五)月

We heard this story that the murders of eight people in a small town in Georgia, there was a guy who called it in, a called 911, that his family had been essentially beaten to death, well now, guess what? Police believe, that guy, 22-year-old, Guy H

发表于:2019-01-07 / 阅读(133) / 评论(0) 分类 CNN2009年(九)月

This is the VOA Special English Health Report. H1N1 flu continues to spread. Currently the virus is most active in the northern half of the world. But experts say it has become the leading influenza virus in all countries. No one really knows how ma

发表于:2019-01-11 / 阅读(139) / 评论(0) 分类 VOA慢速英语2009年(十一)月

By Deborah Block Washington, D.C. 26 June 2006 watch Bird Flu report Researchers are working on developing vaccines for bird flu before it becomes a worldwide epidemic. The University of Massachusetts Medical School in the United States has teamed w

发表于:2019-01-13 / 阅读(185) / 评论(0) 分类 2006年VOA标准英语(六月)

Scientists Seek HIV Vaccine Using Monkey Model Traditional vaccine methods have been unsuccessful in preventing infection by HIV, the virus that causes AIDS. New techniques are being studied to boost antibodies or other parts of the immune system. Bu

发表于:2019-01-13 / 阅读(101) / 评论(0) 分类 VOA标准英语2012年(九月)

Clues Found for AIDS Vaccine Trial Success In 2009, a study in Thailand proved for the first time that an AIDS vaccine was possible. But scientists were not sure why it offered some protection. Now they have some clues. The Thailand study looked at a

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2012年(四月)

New Ebola Vaccine Proves Effective in Mice U.S. scientists have developed a new vaccine against the deadly ebola virus which has the potential to remain potent after years of storage. Ebola is one of the deadliest viruses known. It kills about nine o

发表于:2019-01-13 / 阅读(104) / 评论(0) 分类 VOA标准英语2011年(十二月)

SIV Vaccine Holds Promise for AIDS Researchers are excited about a vaccine they have developed that protects rhesus monkeys from infection with a primate version of the AIDS virus. They hope to use what they've learned to develop an agent that preven

发表于:2019-01-14 / 阅读(143) / 评论(0) 分类 VOA标准英语2011年(五月)

New Yellow Fever Vaccine Shows Promise A new vaccine for yellow fever is showing good results in tests as it overcomes one of the biggest problems with the current version. Yellow fever is a deadly disease that occurs in much of South America and sub

发表于:2019-01-14 / 阅读(120) / 评论(0) 分类 VOA标准英语2011年(四月)

Potent Antibodies Offer New AIDS Vaccine Design Researchers say powerful antibodies may hold clues to developing an effective AIDS vaccine. The antibodies were isolated from individuals already infected with HIV. Dr. Wayne Koff says the goal is to fi

发表于:2019-01-14 / 阅读(123) / 评论(0) 分类 VOA标准英语2011年(八月)

A European medical society has expressed alarm at the widespread opposition in Europe against the swine flu vaccine. Meanwhile, experts say the number of deaths in Europe from the H1N1 virus are doubling every two weeks. Lisa Bryant | Paris 25 Novem

发表于:2019-01-14 / 阅读(94) / 评论(0) 分类 VOA标准英语2009年(十一月)

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Since 1981, more than 30 million

发表于:2019-01-19 / 阅读(90) / 评论(0) 分类 环球英语 Spotlight

By Zulima Palacio Washington, DC 03 February 2006 watch Lassa report When it comes to dangerous jobs, we usually think of things like racing cars, testing explosives or exploring space. Actually, one

发表于:2019-01-22 / 阅读(164) / 评论(0) 分类 2006年VOA标准英语(二月)

HEALTH REPORT - October 16, 2002: Debate About Smallpox Vaccine By Nancy Steinbach This is the VOA Special English Health Report. American medical groups are urging the government to limit the use of

发表于:2019-01-30 / 阅读(127) / 评论(0) 分类 健康与环境

By Gilbert da Costa Abuja 26 October 2007 A rare outbreak of vaccine-derived polio in Nigeria has prompted fears that current efforts to eradicate the disease in northern part of the country could suffer a major setback. The World Health Organization

发表于:2019-01-31 / 阅读(146) / 评论(0) 分类 2007年VOA常速英语(十月)
学英语单词
abondoned ship
adjusting block
air bottle pressure chamber
arousable
asepalous
awrah
Baker-process
blisk rotor configu ration
book-bindings
buffered asynchronous communication interface
Campanulales
cat yawl
cedarbirds
Ciniselli's method
codespace
cold stores
complementary transistor
converter instruction register
correct rate for input
coupleish
cristae dividens
deformable cross arm
dephydroretinol
disdaine
easy peasy
electrical system
epigrapher
espiest
export factoring
extra-mural teaching
fraipontite (fraiponite)
framework of international cooperation
frottage
garance
gardens
Gatterman-Koch synthesis
grippe aurique
gross social product
guarantee and security
gutta-percha (g.p.)
have a bone in the leg
hematocathartic
hepaton
high-speed turbine
historical change
hopsacking
Hospital Grade
Hyparrhenia
immeasurableness
information-technologies
ivy family
jumping rope
leewardness
Llanarmon
logo screen
loopback interface
lullabied
malanga coco
micrantha
mohanas
moonwatch telescope
myloglossus
nardia comata schiffn
needle-in-the-haystack
negative waves
nongranular leuko-cyte
oscillating sort
osteoarcheologists
oversystematizes
paranephric cyst
percentage of time
phenolic mastic
plausibility ordering
pollutant surveillance
post-postmodernism
rareresolution
regional development program
resistance heating
rogalski
rotor starter
salicetum
Saratoga chips
sclerotom
searchpath
shed tear
shortwave beam antenna
simple management protocol
slide valve lever
specification for delivery
standardized death rate
stealth wealth
stopoffs
storre
Tarai
tcheremkhite
thuman
time domain display
trainman
troopials
two-dimensional models
variable equilizer
verbal symbol