2015考研英语阅读艾滋病病毒与母乳
<p> <span word="HIV">HIV</span> <span word="and">and</span> <span word="mothers">mothers</span> <span word="milk">milk</span></p><p> 艾滋病病毒与母乳</p><p> <span word="BAD">BAD</span> <span word="though">though</span> <span word="it">it</span> <span word="has">has</span> <span word="been">been</span>, <span word="the">the</span> <span word="AIDS">AIDS</span> <span word="epidemic">epidemic</span> <span word="would">would</span> <span word="have">have</span> <span word="been">been</span> <span word="a">a</span> <span word="great">great</span> <span word="deal">deal</span> <span word="worse">worse</span> <span word="but">but</span> <span word="for">for</span> <span word="astrange">astrange</span> <span word="and">and</span> <span word="unexplained">unexplained</span> <span word="quirk">quirk</span>. <span word="Infected">Infected</span> <span word="mothers">mothers</span>, <span word="it">it</span> <span word="was">was</span> <span word="feared">feared</span>, <span word="would">would</span> <span word="transmit">transmit</span> <span word="HIV">HIV</span>, <span word="theAIDS">theAIDS</span>-<span word="causing">causing</span> <span word="virus">virus</span>, <span word="to">to</span> <span word="their">their</span> <span word="children">children</span> <span word="when">when</span> <span word="suckling">suckling</span> <span word="them">them</span>. <span word="Mothers">Mothers</span> <span word="milk">milk</span> <span word="carries">carries</span> <span word="the">the</span> <span word="virus">virus</span>,<span word="and">and</span> <span word="suckling">suckling</span> <span word="may">may</span> <span word="last">last</span> <span word="two">two</span> <span word="yearswhich">yearswhich</span> <span word="is">is</span> <span word="plenty">plenty</span> <span word="of">of</span> <span word="time">time</span> <span word="for">for</span> <span word="transmission">transmission</span> <span word="to">to</span> <span word="happen">happen</span>. <span word="Andindeed">Andindeed</span> <span word="it">it</span> <span word="does">does</span>, <span word="but">but</span> <span word="not">not</span> <span word="nearly">nearly</span> <span word="as">as</span> <span word="often">often</span> <span word="as">as</span> <span word="was">was</span> <span word="originally">originally</span> <span word="suspected">suspected</span>. <span word="Less">Less</span> <span word="than">than</span> 10% <span word="of">of</span> <span word="infantssuckled">infantssuckled</span> <span word="by">by</span> <span word="untreated">untreated</span> <span word="infected">infected</span> <span word="mothers">mothers</span> <span word="pick">pick</span> <span word="up">up</span> <span word="HIV">HIV</span>.</p><p> 尽管情况很糟糕了，但是由于一种奇怪的无法解释的现象，艾滋病的流行程度没有更糟。很多人担心受感染的母亲会在哺乳时将艾滋病病毒传播给自己的孩子。母乳携带有艾滋病病毒，哺乳期可能达到两年，这给传染提供了足够长的时间。而事实上传染也发生了，但是跟最初所怀疑的有出入。只有不到10%的婴儿会从未接受治疗的母亲那里感染艾滋病。</p><p> <span word="Why">Why</span> <span word="that">that</span> <span word="should">should</span> <span word="be">be</span> <span word="has">has</span> <span word="remained">remained</span> <span word="mysterious">mysterious</span>. <span word="But">But</span> <span word="Genevieve">Genevieve</span> <span word="Fouda">Fouda</span> <span word="of">of</span> <span word="Duke">Duke</span> <span word="University">University</span>, <span word="inNorth">inNorth</span> <span word="Carolina">Carolina</span>, <span word="and">and</span> <span word="her">her</span> <span word="colleagues">colleagues</span> <span word="think">think</span> <span word="they">they</span> <span word="have">have</span> <span word="the">the</span> <span word="answer">answer</span>. <span word="If">If</span> <span word="they">they</span> <span word="are">are</span> <span word="right">right</span>, <span word="manychildren">manychildren</span> <span word="have">have</span> <span word="been">been</span> <span word="spared">spared</span> <span word="AIDS">AIDS</span> <span word="by">by</span> <span word="a">a</span> <span word="flukebut">flukebut</span> <span word="a">a</span> <span word="fluke">fluke</span> <span word="that">that</span> <span word="could">could</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="develop">develop</span> <span word="a">a</span> <span word="newweapon">newweapon</span> <span word="to">to</span> <span word="attack">attack</span> <span word="it">it</span>.</p><p> 上述问题一直是未解之谜。但是北卡罗来纳州杜克大学的吉纳维夫富达和她的同事认为他们找到了答案。如果他们是正确的，这意味着许多儿童侥幸逃过艾滋病，这种侥幸能用来开发一种对抗艾滋病的新武器。</p>
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