时间:2019-01-30 作者:英语课 分类:健康与经济


英语课

HEALTH REPORT - Progress Toward a Malaria 1 Vaccine 2
By Karen Leggett


Broadcast: Wednesday, October 27, 2004


This is Gwen Outen with the VOA Special English Health Report.


There is progress toward a vaccine to prevent malaria. Researchers have been testing an experimental vaccine in Mozambique. This is what they have found:


In a group of one thousand six hundred children, the vaccine reduced the risk of malaria attacks by thirty percent. It reduced the risk of severe cases of the disease by almost sixty percent.


Also, the vaccine appeared effective in preventing new cases of infection with the malaria parasite 3 most common in Africa. In a second group of four hundred children, the vaccine reduced the risk of new infections by forty-five percent.


The findings appeared earlier this month in The Lancet.


The researchers say the experimental vaccine is safe. Doctor Pedro Alonso of the University of Barcelona, in Spain, led the study. He says the vaccine should protect children for at least six months. He noted 4 that earlier tests found that the protection lasted only a short time in adults.


There are several hundred million cases of malaria in the world each year. Malaria damages the nervous system, kidneys and liver. By current estimates, at least one million people a year die from malaria. Most of those victims are young children in Africa. In fact, malaria kills more African children under the age of five than any other disease.


The economic costs to Africa from malaria are estimated at twelve thousand million dollars a year.


People get malaria when they are bitten by mosquitoes that carry the parasite. Researchers say the malaria parasite is more complex than organisms that cause many other diseases. That has made it more difficult to find a vaccine that is safe and effective. Cost is also an important issue.


The Ministry 5 of Health in Mozambique, the drug company GlaxoSmithKline and the Malaria Vaccine Initiative supported the tests. The initiative began in nineteen ninety-nine with fifty million dollars from the Bill and Melinda Gates Foundation.


More testing is needed. Experts say they do not expect a malaria vaccine to be approved for use until at least two thousand ten. GlaxoSmithKline says it can take six years to build a factory where the vaccine can be made.


More than one-third of all people live in countries with malaria. By two thousand ten, experts say that share of the population will increase to half.


This VOA Special English Health Report was written by Karen Leggett. This is Gwen Outen.



n.疟疾
  • He had frequent attacks of malaria.他常患疟疾。
  • Malaria is a kind of serious malady.疟疾是一种严重的疾病。
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.寄生虫;寄生菌;食客
  • The lazy man was a parasite on his family.那懒汉是家里的寄生虫。
  • I don't want to be a parasite.I must earn my own way in life.我不想做寄生虫,我要自己养活自己。
adj.著名的,知名的
  • The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
  • Jim is noted for arriving late for work.吉姆上班迟到出了名。
n.(政府的)部;牧师
  • They sent a deputation to the ministry to complain.他们派了一个代表团到部里投诉。
  • We probed the Air Ministry statements.我们调查了空军部的记录。
学英语单词
a good not a few
administratixes
Almagte
analysis magnet
arshins
artificial corundum
automatic train door control
bahktin
bailer
bifid chaeta
Boehmeria penduliflora
braking slope
centers method
characterizable
chefdoeuvre
co-sleep
conneting rod bearing
conorm
cooperativists
counter-gauge
Curculigo crassifolia
database data name
Davion
Desktop Management Task Force
diverter pole generator
downdraught typeproducer
electromyographic integrator
energy-gdp
extreme order statistic
Filociclina
folklores
frenulum veli medullaris anterioris
gadis
genus Lactuca
give a dose of sb's own medicine
Greenland Currents
gun shearer
hard-baked spleen
hemotoxic
high-speed automatic circuit breaker
Hill's katathermometer
holding down latch
Hydrallazin
institutions for academic research
insull
isometric DNA sequence
k'meyer
ladles out
law of permanence of small numbers
lay-readers
legat ballet school system
Lysenko, Trofim Denisovich
marine petroleum development
matrix plane output
median ligament of bladder (or median umbilical fold)
methylstyrene rubber
miraculism
mitral
mom-in-law
multiple-loop system
natural action
non-incremental costs
Northampton Uplands
nuclear depth bomb
Nyquist locus
off farm income
organ-piep canner
osteotomized
Ozymandias
perienchyma
permissible deviation
philosophy of measurement
phylloclades
Populus shanxiensis
portrait position
proceed out of harbour
pseudo-Raman technique
Ragman roll
random coincidence
RAPHIDIOIDEA
reachable marking graph
Reinvoicing center
restible
sal perlatum
Salses
selenyl bromide
slow-burns
sound-proof motor
special purpose memory
spotted beebalms
squarrose
structural homogenity
student activities
subscript name
supply a gap
Tasmanians
tensiometry
toastcrumbs
transcription device
tuberculocidin
Tungusskoye Plato
uncorrelated variable