时间:2019-01-30 作者:英语课 分类:农业与发展


英语课

DEVELOPMENT REPORT - Study Says Vitamins May Slow AIDS Virus
By Jill Moss 1


Broadcast: Monday, July 12, 2004


This is Robert Cohen with the VOA Special English Development Report.


A study of women infected with H.I.V. suggests that vitamins can delay the progress of AIDS. These are the results of a five-year study in Tanzania. The findings suggest that vitamins could delay the need to start costly 2 AIDS drugs in developing countries. Doctors say the drugs could then go to those who need them most.


American and Tanzanian scientists found that the vitamins increased counts of cells that fight disease. And there were some reductions in H.I.V. levels in the blood. H.I.V. is the virus that develops into AIDS.


There are fourteen kinds of vitamins. People who do not get enough of these chemical compounds in their food, or want more, often take multivitamins. The women in the study took multivitamins that contained large amounts of vitamin B, as well as vitamins C and E.


More than one-thousand pregnant women infected with H.I.V. took part. Some received a daily multivitamin without vitamin A. Others received a multivitamin plus vitamin A. Still others took vitamin A alone. The scientists gave placebo 3 pills to a fourth group of women. These pills contained no vitamins at all.


The mothers received yearly medical examinations. The best results were reported in those who took multivitamins without vitamin A for the five years of the study. The researchers found that these mothers were fifty percent less likely to progress to AIDS as those in the placebo group.


Women who took multivitamins also had fewer problems such as mouth infections and diarrhea as their infection worsened. Still, death rates were not much different between the women who took multivitamins and those who did not.


The researchers say the multivitamins used in the study cost about fifteen dollars for a one-year supply. AIDS drugs can cost developing countries several hundred dollars or more.


The study did not include H.I.V. infected men. But Doctor Wafaie Fawzi at the Harvard School of Public Health says he believes men would also gain from multivitamins.


The New England Journal of Medicine published the results last week. Also last week, the United Nations reported that about five million people became infected with H.I.V. last year. That is the most yet. To hear more about the AIDS crisis, listen to the Health Report at this same time on Wednesday.


This VOA Special English Development Report was written by Jill Moss. This is Robert Cohen.



n.苔,藓,地衣
  • Moss grows on a rock.苔藓生在石头上。
  • He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
adj.昂贵的,价值高的,豪华的
  • It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • This dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
n.安慰剂;宽慰话
  • The placebo has been found to work with a lot of different cases.人们已发现安慰剂能在很多不同的病例中发挥作用。
  • The placebo effect refers to all the observable behaviors caused by placebo.安慰剂效应是指由安慰剂所引起的可观察的行为。
学英语单词
absorb nourishment
ammonia carrier
Anatole
andesinfels
applewoods
Auriflama
automac
baked goods
bancroftian
bark pocket
batch end point
bid rent
breakthrough innovations
bromoviruses
butschek
buzzer-beater
camping up
Carex orbicularinucis
cheapasses
chlorosuphonated-polyethylene
circuit unit assembly
circumferential work
coastal ocean dynamics
compensation measuring method
continuous-flow tank
cross neutralization test
Cullera
dendritic segregation
Dioscorea kamoonensis
discommodiously
domestic industry
double corridor
drier vacuum
effect of evolution
electron ring accelerator(ERA)
elision
epileptoids
Erdemli
euban (quartz)
failure cause data report
fluid cinder
Frankiaceae
galvanized hexagonal wire mesh
golemic
gonadotrophic hormone
Heterotidae
Hollain
intracutaneous inoculation
kephinin
kitsons
ksenya
latching current
liquid miscibility gap
majority influence
maytas
melodic instrument
metallic resistance material
metering plug
neuropeptide
nitroxylene
one way automatic feeder
optical effects
orbital node
ostracises
Pasta Theory of Programming
penal institution
pharomacrus mocinoes
pheasants eye
phosphoric ether
pleurocarpous
press ... on
programmed synchronising time
Protosiphon
public works vehicle
Pyrrothrix heterochroa
quartiparous
receive-only
robot education
rotating loop radiobeacon
saberhagen
Sarhan
save palette
say nay to sth.
scare the pants off
setting circuit
sinoidal
straton
sulfapyrazinemethoxyne
tecnifibres
Tedder, Arthur William, 1st Baron
third-divisions
thrower's fracture of humerus
totally enclosed cabin
triethoxy-silicane
trimmed in bunker
two-dimensional display
udls
up-put
usable height
variable ratio (vr) schedule of reinforcement
web holder
whipstock