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
Agaricus bitorqui
Agave sisalana Perrine
Alfred Kinsey
all-wools
amarillos
antiviral model
Araman
artioploid
automatic recalculation
Aviculopecten
bias binding
blood flow in brain
cakeholes
closed route
comprehendingly
consecutive angiitis
cooling water head tank
corpus luteums
counter-sue
crosslets
dalic plating
Doppler ultrasonic flowmeter
energy step diagram
energy-replacement time
eurya japonica thunb. var. microphylla bl.
fibrecrafts
fluorescence decay time
following tide
formosa snake-head
fresh air mask
full elliptic spring
gas control lever
geomorphic snowline
Gibsonian
got in
gravitational wave source
Handl
have a good memory
hemoglobinorrhea
herb tea
high grade steel
hyaloclastite
hydder
imbanded
Imst
interrupted ferns
IP header
jerries
kasos
Koester's stain
lifting shaft arm
likeless
Léraba Orientale
maintenance engineering analysis data (system)
membrane evaporator
mis-speak
monovalent element
Mycobacterium butyricum
Neustadt an der Weinstrasse
Newcomb, Simon
on line refueling
optimum exposure
order of procedure
out of all relation to
overflow pipes with adjustable rings
oxyurid
papist
passage (hydraulic)
photo chromic film
photoresistive
pidonia longipalpalis
Pluropon
policy alternatives
poliencephalitis
president arthurs
rape blossom
rev'd
scalphemostaticclip
semiprotected
shape casting
Shirakura-yama
single cycle
Siwalik Hills
still going strong
streamer fault locator
suction intake
switchgroup
synchronous deposits
takapu
ternis
think positively
thylacines
tort feasor
traveling luffing crane
Trueta treatment
uro-azotometer
v.42
ventails
verbal confession
water electrolysis system
yellow spot fungus