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
.cdt
acaulescent
afford satisfaction to
alternating polarity
aminoglycan
angiorrbagia
anniferous
anonymous letter of accusation
automated data processing
Bacillus funduliformis
ballabile (italy)
bed-spring
big-boy pants
biomedicines
boxhauls
British National Committee for Ocean Engineering
bulks out
cellpadding
changeover timetable
coiffing
coldblood
complex MAIS
Craterellus
decinormal solution
decology
dehydropodophyllotoxin(e)
disrespecter
dry heart rot
e-3s
effortfully
ethylchlorosulfonate
eupraxsophies
exclusion orders
favourablest
flammuiin
flub it
geometric figure
great sacrifice
Grigori Efimovich Rasputin
immobile uranium
impulse hardening
incommodious
insider-dealing
Janiópolis
Jewhatred
jumping Jesus
krzysztof
kudelka
Kyabra
lab-our
legally filing the award
materials science and engineering
Maxwell equation of state
narrow die
nasal ganglion
NAVIND
nematic structure
nonagreed
object-centered representation
oil of bergamot
oosorption
outside screw
overshaken
palaeoaktology
Parkinson disease
poly-oxy-methylene
pulse compression ratio
rabinowicz
rattle boxes
real concepts
rebags
receiver drum
replacement texture
rhythmist
sayers'
scarf skin
Section d'Or
selecao
semester hours
siliceous reservoir rock
simultaneous definition
Spirany
steetley
Stemmacantha carthamoides
studyless
subtractable
swamped
swing against
TAIF
tank filter valve
task someone's mind
tetraphosphine
the elderly
theories of dissociation
thoracic tuberculosis
unsympathising
update access
urodynamics
Villedômer
wandering set
Wittersdorf
zipper merge