艾滋病英语作文:ABC OF AIDS1200字
AIDS is the abbreviation1) of ACQUIRED IMMUNE DEFICIENCY SYNDROME.It is a complicated illness that may involve several phases.it is caused by a virus that can be passed from person to person.AIDS impairs the human body's immune system,the system responsible for keeping off disease,and leaves the victim easily affected by various infection.
The virus enters the bloodstream and destroys certain white blood cells,called T lymphocytes2),which play a key role in the functioning of the immune system.The virus can also infect other types of cells in the body,including the immune-system cells knows as macrophages3).Unlike T lymphocytes,however,macrophages are not killed by the virus.
Most people recently infected by the AIDS virus look and feel healthy.In some people the virus may remain inactive,and these people act as carriers,remaining apparently healthy but still able to infect others.After a few years,some people may develop AIDS-related complex,or ARC.Its symptoms may include fever,fatigue4),weight loss,skin rashes,a fungal5) infection of the mouth known as thrush,lack of resistance to infection,and swollen lymph nodes.
AIDS is spread by direct infection of the bloodstream with body fluids that contain the AIDS virus,particular blood and semen from an HIV-infected person.The virus is usually spread through various forms of sexual intercourse,the transfusion of virus-infected blood,or the sharing of HIV-contaminated intravenous6) need les.
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艾滋病英语作文:World AIDS Day800字
WorldAIDSDayisobservedeveryyearonDecember1st.DoyouknowAIDS?AIDSisaterribledisease.Rightnow,itisadeadlydiseaseandsofar,itcannotbeeisnopill,novaccine,nosurgerytomakeyoubetter.HIVandAIDShasdecimatedtheworldwelivein,andthingsareonlygoingtogetiti...
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关于艾滋病的作文:认识艾滋病700字
近年来,我们对艾滋病这个词可以说是即熟悉又陌生,熟悉是因为我们听到这个词的名字太多了,陌生是因为我们对艾滋病的了解和认识极少。艾滋病是什么,说实话我并不太了解,但是我知道艾滋病并不像传闻中的那样可怕,这几天和同学们在一起研读了一些关于艾滋病方面的内容,使...
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艾滋病英语作文:fight against AIDS3000字
AsIjustwitnessedduringmyrecentvisithere,ChinahasmadesubstantialprogressincheckingthespreadofHIVbutthereisstillalongwaytogo.Fromaninfectionunknownonly27yearsago,AIDShasbecometrulyglobalized.Today,33millionpeoplelivewithHIVaroundtheglobe,and2...
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预防艾滋病(fight aids)1500字
Byofficialestimates,Chinahas840,000peoplecarryingHIV,thevirusthatcausesAIDS,andabout80,000AIDSpatients.DespitethefairlylargegroupsofHIVcarriersandAIDSpatients,theepidemicismostlyconfinedtohigh-riskgroups,suchasdrugusers,prostitutesanduserso...
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