吸血昆虫引发新型艾滋病 美洲成重灾区
<p><span word="Experts">Experts</span> <span word="have">have</span> <span word="dubbed">dubbed</span> <span word="it">it</span> <span word="the">the</span> “<span word="new">new</span> <span word="AIDS">AIDS</span> <span word="of">of</span> <span word="the">the</span> <span word="Americas">Americas</span>.”</p><p><span word="A">A</span> <span word="parasitic">parasitic</span> <span word="infection">infection</span> <span word="called">called</span> <span word="Chagas">Chagas</span> <span word="Disease">Disease</span> <span word="has">has</span> <span word="similarities">similarities</span> <span word="to">to</span> <span word="the">the</span> <span word="early">early</span> <span word="spread">spread</span> <span word="of">of</span> <span word="HIV">HIV</span>, <span word="according">according</span> <span word="to">to</span> <span word="research">research</span> <span word="published">published</span> <span word="recently">recently</span> <span word="in">in</span> <span word="the">the</span> <span word="journal">journal</span> <span word="PLoS">PLoS</span> <span word="Neglected">Neglected</span> <span word="Tropical">Tropical</span> <span word="Diseases">Diseases</span>.</p><p><span word="Like">Like</span> <span word="AIDS">AIDS</span>, <span word="Chagas">Chagas</span> <span word="is">is</span> <span word="hard">hard</span> <span word="to">to</span> <span word="detect">detect</span> <span word="and">and</span> <span word="has">has</span> <span word="a">a</span> <span word="long">long</span> <span word="incubation">incubation</span> <span word="period">period</span> <span word="before">before</span> <span word="symptoms">symptoms</span> <span word="emerge">emerge</span>, <span word="the">the</span> <span word="study">study</span> <span word="said">said</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="New">New</span> <span word="York">York</span> <span word="Times">Times</span>.</p><p><span word="As">As</span> <span word="many">many</span> <span word="as">as</span> 8 <span word="million">million</span> <span word="people">people</span> <span word="are">are</span> <span word="infected">infected</span> <span word="in">in</span> <span word="the">the</span> <span word="Western">Western</span> <span word="Hemisphere">Hemisphere</span>, <span word="mainly">mainly</span> <span word="in">in</span> <span word="Bolivia">Bolivia</span>, <span word="Mexico">Mexico</span>, <span word="Colombia">Colombia</span> <span word="and">and</span> <span word="Central">Central</span> <span word="America">America</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="some">some</span> 30,000 <span word="people">people</span> <span word="in">in</span> <span word="the">the</span> <span word="US">US</span>, <span word="the">the</span> <span word="newspaper">newspaper</span> <span word="reported">reported</span>. <span word="Chagas">Chagas</span> <span word="infects">infects</span> <span word="people">people</span> <span word="in">in</span> <span word="areas">areas</span> <span word="of">of</span> <span word="poverty">poverty</span>, <span word="and">and</span> <span word="most">most</span> <span word="US">US</span> <span word="cases">cases</span> <span word="are">are</span> <span word="found">found</span> <span word="in">in</span> <span word="immigrants">immigrants</span>.</p><p><span word="Because">Because</span> <span word="Chagas">Chagas</span> <span word="is">is</span> <span word="often">often</span> <span word="left">left</span> <span word="untreated">untreated</span>, <span word="it">it</span> <span word="spreads">spreads</span> <span word="easily">easily</span>, <span word="either">either</span> <span word="genetically">genetically</span> <span word="or">or</span> <span word="through">through</span> <span word="blood">blood</span> <span word="transfusion">transfusion</span>. <span word="If">If</span> <span word="caught">caught</span> <span word="early">early</span>, <span word="it">it</span> <span word="can">can</span> <span word="be">be</span> <span word="treated">treated</span> <span word="with">with</span> <span word="intense">intense</span> <span word="medication">medication</span>, <span word="but">but</span> <span word="the">the</span> <span word="drugs">drugs</span> <span word="are">are</span> <span word="scarce">scarce</span> <span word="in">in</span> <span word="poor">poor</span> <span word="countries">countries</span> <span word="and">and</span> <span word="very">very</span> <span word="little">little</span> <span word="money">money</span> <span word="is">is</span> <span word="invested">invested</span> <span word="in">in</span> <span word="searching">searching</span> <span word="for">for</span> <span word="new">new</span> <span word="treatments">treatments</span>, <span word="the">the</span> <span word="paper">paper</span> <span word="said">said</span>.</p><p><span word="Chagas">Chagas</span> <span word="is">is</span> <span word="usually">usually</span> <span word="transmitted">transmitted</span> <span word="from">from</span> <span word="the">the</span> <span word="bite">bite</span> <span word="of">of</span> <span word="blood">blood</span>-<span word="sucking">sucking</span> <span word="insects">insects</span> <span word="that">that</span> <span word="release">release</span> <span word="a">a</span> <span word="parasite">parasite</span> <span word="called">called</span> <span word="Trypanosoma">Trypanosoma</span> <span word="cruzi">cruzi</span> <span word="into">into</span> <span word="the">the</span> <span word="victim">victim</span>’<span word="s">s</span> <span word="bloodstream">bloodstream</span>. <span word="The">The</span> <span word="parasite">parasite</span> <span word="can">can</span> <span word="eventually">eventually</span> <span word="make">make</span> <span word="its">its</span> <span word="way">way</span> <span word="to">to</span> <span word="the">the</span> <span word="heart">heart</span>, <span word="where">where</span> <span word="it">it</span> <span word="can">can</span> <span word="live">live</span> <span word="and">and</span> <span word="multiply">multiply</span>.</p><p><span word="Infections">Infections</span> <span word="often">often</span> <span word="stay">stay</span> <span word="dormant">dormant</span> <span word="for">for</span> <span word="years">years</span>, <span word="and">and</span> <span word="then">then</span> <span word="emerge">emerge</span> <span word="as">as</span> <span word="heart">heart</span> <span word="arrhythmias">arrhythmias</span> <span word="and">and</span> <span word="heart">heart</span> <span word="failure">failure</span>. <span word="About">About</span> <span word="a">a</span> <span word="quarter">quarter</span> <span word="of">of</span> <span word="victims">victims</span> <span word="develop">develop</span> <span word="enlarged">enlarged</span> <span word="heart">heart</span> <span word="or">or</span> <span word="intestines">intestines</span> <span word="that">that</span> <span word="can">can</span> <span word="lead">lead</span> <span word="to">to</span> <span word="sudden">sudden</span> <span word="death">death</span> <span word="if">if</span> <span word="they">they</span> <span word="burst">burst</span>, <span word="according">according</span> <span word="to">to</span> <span word="the">the</span> <span word="Centers">Centers</span> <span word="for">for</span> <span word="Disease">Disease</span> <span word="Control">Control</span> <span word="and">and</span> <span word="Prevention">Prevention</span>.</p>
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