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
aither
anisate
anoysance
biomonitors
biplumbic
bisarylated
blockade and embarge
brake moment
Burdiehouse limestone
calling trace
coacervation dyeing
come into existence
commercial access provider
compacted sub-soil base
course change index
crippling load
culmina
cytobiologist
decampments
decides upon
detokenization
deuteranoid
direct-contact heat exchanger
disinthrall
distichophyllum maibarae
diversifier
double strength glass
dursun
Dysecdysis
ellipse of concentration
empty nests
fays
fibrillated strand
flatcap
friendship benches
frigatebird
fur beetles
glenarden
goat-milk
granulation tumor
gun-cooling lines
Haller's rete
heliangine
high voltage source filter
horizontal tailplane
hydra (ydra )
hypercolour
Hövsgöl Aymag
in progression
indirect humidifier
keep their head above water
kid brother
lamb reverse
long draft spinning
midday prayer
middling particle
monometallic standard system
moulded steel
nulli-tetrasomics
oded
ovulariopsis ampelopsidis-heterophyllae
Panpipes
passenger ship subdivision
pemmicanized
photon drag photodetector
planktologist
platelet agglutination
record breaker
relative transmission level
rhytidocarpous
right hand plough
section dividing
self-reformings
sermocinators
ship auger
Small Holding Act
software network design
spinmeisters
stirred yoghurt with fruits
straight pedicellaria
straightly travelling s/r machine
supersampled
Synandon
synthetic inorganic pigment
the competition
thou mayest
three-way bulb
ultima ratio regum
universal potentiometer
vaporizing burner
vena ulnariss
video equipment
waiting period
wallaby bush
warangalone
warrenage
well-browed
wind resistance loss
worst-affected
wriht
Zehlendorf