艾滋病英語作文: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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預防艾滋病作文800字
你,如同一粒塵土,悄悄地侵臨在不幸者的身上。你,如同一個惡魔,兇惡地使不幸者悲痛絕望。你,如同一位死神,無情地剝奪了絕望者的靈魂。……雖然你如同死神一般恐怖,但你也是如死神害怕光明一樣,是有弱點的。我們雖不能面對面地將你擊倒,但我們知道,你降臨於人...
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預防艾滋病作文:預防艾滋病 你我同參與700字
近年來,我們對艾滋病這個詞可以説是即熟悉又陌生,熟悉是因為我們聽到這個詞的名字太多了,陌生是因為我們對艾滋病的瞭解和認識極少。艾滋病是什麼,説實話我並不太瞭解,但是我知道艾滋病並不像傳聞中的那樣可怕,這幾天和同學們在一起研讀了一些關於艾滋病方面的內容,使...
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我上艾滋病健康教育課800字
艾滋病是由艾滋病病毒侵入人體後引發的一種嚴重傳染病,當HIV侵入人體與T淋巴細胞結合,破壞T淋巴細胞,使免疫調節受到抑制,並逐漸使人體的免疫系統癱瘓,功能瓦解,最終使人無法抵抗其他病毒,病菌的侵入,或發生惡性腫瘤而死亡。艾滋病是如此的可恨,可怕。但目前,艾滋病仍然...
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艾滋病英語作文:See an AIDS Sufferer800字
LastSundayallofourclasswithourclasstogetherwithourheadteacherwenttoahospitaltoseeanAIDSsufferer.Webroughtaboundofflowersandabasketoffruitmsendtothepatient.Thefemalepatientwasverygladtoseeus.Shetoldusthatmostofthepeopleavoidedseeinghersinces...
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