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
-e-
alphavirus chikungunya virus
alpine milk vetch
amortization of lease-hold
ancillary device
antilust
audio frequency overlay circuit
avengeful
beet webworm
biological marker
bogland
bullish tendency
burnison
cafeteria benefit programs
central (force) field
Cephalorrhynchus albiflorus
Città Universitaria
cluckings
clutch release lever pin
coaxial power line
coherent carriers
commercial profit
communicating branch with hypoglossal nerve
conditional crack initiation toughness
cornmeal
corrugated horn antenna
Cribraria
decay of harmonics
deoxygenated
destructionists
diamond bar steel
digital-health
disapproved
disfranchisements
encoms
endophloid
English unit
flindersine
fulminate fuse
Garbo
gender-aware
general-purpose alloy
golf club
goods allocation
gsb
hot magnetron
infinite language
integrated waveform
interval zone
inventory control system
jordan filling
layawayed
litho-relict
local exchange potential
look into your heart
manual crane
mean sampling accuracy
Milesian School
multiterminal distribution system and network
newspaper display stand
ostentatiousnesses
overoptimism
perlite iron
permissible loading of transmission lines
platon
Pobiti Kamǔni
posterior amniotic fold
postretiree
premade
Primula tridentifera
protophosphide
PUPP
quadriserial
re-interviewed
reasearch
red blood cell count
red-green blindness
reserve ration
respect of
retort-type slag tap furnace
root neck
scavenging air duct
secondary foci
section supervisor
self-clean
sensour
simple lymphangioma
space tracker
standardization of tariffs
syncolin
systemoid
tide-gage station
training circular
Tschmarke's treatment
two sanding belts top working wide sander
Union Square
unproductive property
upbreed
vad
valve reseating tool
viewing angle correction
Zhaksykon