时间:2019-01-14 作者:英语课 分类:VOA标准英语2015年(三月)


英语课

Ebola Vaccine 1 Enters Final Trial Phase 埃博拉病毒疫苗进入最后审判阶段


An Ebola vaccine candidate enters the final phase of its trial Saturday (3/7) in Guinea. If successful, a vaccine could be ready for use in five or six months.


The VSV-EBOV vaccine was developed by Canada’s Public Health Agency. World Health Organization vaccine expert Dr. Marie-Pierre Préziosi said Phase III will be conducted in the Basse Guinée region. It’s had the highest number of Ebola cases in the country


“Phase III trial aims to test for safety and efficacy or effectiveness of a candidate vaccine. This is a final trial prior to licensure of a vaccine. The vaccination 2 phase in itself is anticipated to last about 60 days. And then there will be a follow-up period of about 84 days. That is about three months. So altogether it should be around six months duration,” she said.


The vaccine is based on a genetically 3 engineered virus that’s been given some proteins of the Ebola virus.


“This is a very common technique to make good vaccines,” she said.


The strategy being used in the Phase III trial is known as “ring vaccination.” It’s a technique that was used to eradicate 4 smallpox 5 in the 1970s. Researchers identify a newly diagnosed Ebola patient, who is called the “index case.” Then they trace all of his or her contacts and vaccinate 6 them, if they give their consent. The goal is to create a buffer 7 zone that prevents the spread of the disease.


Dr. Préziosi said it’s important to have an Ebola vaccine even though the number of new cases is on the decline.


“Although we see that cases are declining and the outbreak seems to be waning 8, unfortunately, as we speak there are still cases in various locations in Guinea. So, this really tells us that the epidemic 9 is not over. We need to continue because this environment is quite unpredictable and the epidemic might flare-up again. And also if we are able to have an effective vaccine it would be really an invaluable 10 tool to fight this outbreak and any other outbreak that would come in the future.”


She said a vaccine could be used in several ways in the next Ebola outbreak. For example, it could be given only to frontline workers – those in direct contact with patients – or given to large portions of a country’s population.


“We are all holding our breath because we are living a very important moment for this outbreak and for any future outbreak,” she said.


It’s not clear what the cost of an Ebola vaccine dose will be.



n.牛痘苗,疫苗;adj.牛痘的,疫苗的
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
n.接种疫苗,种痘
  • Vaccination is a preventive against smallpox.种痘是预防天花的方法。
  • Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。
adv.遗传上
  • All the bees in the colony are genetically related. 同一群体的蜜蜂都有亲缘关系。
  • Genetically modified foods have already arrived on American dinner tables. 经基因改造加工过的食物已端上了美国人的餐桌。 来自英汉非文学 - 生命科学 - 基因与食物
v.根除,消灭,杜绝
  • These insects are very difficult to eradicate.这些昆虫很难根除。
  • They are already battling to eradicate illnesses such as malaria and tetanus.他们已经在努力消灭疟疾、破伤风等疾病。
n.天花
  • In 1742 he suffered a fatal attack of smallpox.1742年,他染上了致命的天花。
  • Were you vaccinated against smallpox as a child?你小时候打过天花疫苗吗?
vt.给…接种疫苗;种牛痘
  • Local health officials then can plan the best times to vaccinate people.这样,当地的卫生官员就可以安排最佳时间给人们接种疫苗。
  • Doctors vaccinate us so that we do not catch smallpox.医生给我们打预防针使我们不会得天花。
n.起缓冲作用的人(或物),缓冲器;vt.缓冲
  • A little money can be a useful buffer in time of need.在急需时,很少一点钱就能解燃眉之急。
  • Romantic love will buffer you against life's hardships.浪漫的爱会减轻生活的艰辛。
adj.(月亮)渐亏的,逐渐减弱或变小的n.月亏v.衰落( wane的现在分词 );(月)亏;变小;变暗淡
  • Her enthusiasm for the whole idea was waning rapidly. 她对整个想法的热情迅速冷淡了下来。
  • The day is waning and the road is ending. 日暮途穷。 来自《现代汉英综合大词典》
n.流行病;盛行;adj.流行性的,流传极广的
  • That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
  • The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。
adj.无价的,非常宝贵的,极为贵重的
  • A computer would have been invaluable for this job.一台计算机对这个工作的作用会是无法估计的。
  • This information was invaluable to him.这个消息对他来说是非常宝贵的。
学英语单词
active trade
adwatch
aerodynamic model
andhi
archaeocyathids
atomic fuel
bacteridia
be taken in the toils
bgi
breets
Brinsworth
bronchial adenocarcinoma
bronchiogenic
brush arm
business-to-business ec
cachectic aphthae
carbon-break switch
chart of standardization
chlorbutamide
coeducational colleges and universities
collision diagram
colysis wrightii
condensing rate
conidiomata
connection cable
consecrater
coquetter
cyc-
DAA
deines
dertouzos
detector heater
devens
dielectric absorption
diethyleneglycol diethyl ether
dive bombers
divertingness
double triode
dropped in
drunk tanks
dual-diffused MOS
eosinophilic granuloma of bone
Eurysiphonata(Nautiloidea)
expanding earth theory
face men
field general court-martial
fine glass rod
Gavilán, Pta.
geolinguist
greinke
heavy current feedthrough
hilve
house dust mite
ill afford
image contrast
isthmuss of tehuantepec
Jiaoliao old land
Le Sen
linearrization
loading and dischanging rate
long-legged fly
lymphochoriomeningitis
machine pistols
matrix of domination
micro bearing
microprocessor instrument
mobile educational service
mothproofs
multisync monitor
neocytheretta weimingella
Neuenrade
neutron embrittlement
open ... head
operational statement
Osaka
output limiting facility
Palcopsychology
panel vibration
place of erection
politicial
rate-sensitive
rattlebrained
register of writs
senologist
shearest
SOED
someone walking over my grave
speical purpose telephone
sturnus
superpremiums
tape resident system
taxiway lighting system
tea-leaf steaming machine
telemechanisation
thaw(ing)
thrash something out
underfeatured
unslashed
variable cost dynamics
viggers
walk-though
white light holography