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
'all
address complete signal
adult-type
amethystoglossum
ammonia lyase
anacrotic incisura
australian-owned
B ring
battery dialing
best-maintained
bone standing
botetourt
boven
browze
buckhorn
budino
burrlike
butter-fat content
calciphobes
cementation hardening
chequer work
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clitoralgia
compare
complex reactor
cooperative fuel research committee
cor anglais
diablos
dispicience
drimenol
duodecimal base
elshtains
end-position nystagmus
equestrianesses
extremal subset
finished form
formaldehyde
Fornax System
genus Pilosella
get something into one's head
gingival-lingual wire
gotten a move on
grid filament capacity
hookeriana
hot joint
Iksancheon
indulge in
isotope tracer studies
Komoe
language binding
lepidotrichia
liquid-vapor flow
local cause
measure of variability
Molenbeek-Wersbeek
mulligrubs
multigrounded common neutral
naftopen
narran l. (terewah l.)
Niwāri
not in a hurry
obscuring
order release summary and material detail update
paint spraying pistol
parahoxozoan
passerinas
pelopathy
performance manager
period mean
phosphoroclastic cleavage
phototoxic drug eruption
pointset
pointsmen
polycythemia vera
polymicrian
pomellos
record level access
register holes
resistance form
RNA recombination
safe loading
Sansovino, Andrea
Santesson's anemia
sedimentation constant
semi cantilever
sintaxanthin
spinovascular
structured COBOL programming
take ... to task
Tarumirim
televised microscope
the infrared distancer
undisheartened
unhabited
unmanlinesses
venae facialis posterior
vivande
voice to text
width of wheel rim
year-earlier
Yushania maculata