食物过敏症“挑食”的孩子伤不起

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1、食物过敏症“挑食”的孩子伤不起　　Morechildrenareshowingfoodallergies，includingpeanuts，butmedicalinvestigatorsdon’thaveaclearexplanationfortheincrease.　　Earlierthismontha13-year-oldCaliforniagirlwithapeanutallergydiedinherfather’sarmsafterunknowinglyconsumingasmallamountofpeanutb

2、utterinasnackshewaseating.Thegirlquicklyspitoutthesmallbitofpeanutbutter，buteffortstosaveherlife，includingmultipleinjectionsthatshouldhavebroughtherallergicreactiontoahalt，werefutile.　　Theteen’sdeathbringstolightthedangersfacedbythosewithseverefoodallergies.　　The

3、numberofallallergies，includingpeanuts，isrising，saidDr.SamiBahna，chiefofallergyatLouisianaStateUniversity.　　TheWorldHealthOrganizationsaysfoodallergiesappeartobeontheriseinallindustrializednationsandconsidersitanimportanthealthissue.AccordingtoareportinMayfromthef

4、ederalCentersforDiseaseControlandPrevention，thenumberofU.S.childrenwhohavefoodallergiesroseby50percentfrom1997to2011.Inparticular，peanutallergiesamongchildrenappeartohavetripledbetween1997and2008，accordingtoastudypublishedin2010.　　Thereisstillnocureforfoodallergi

5、es，althoughthefederalgovernment’sinvestmentinfoodallergyresearchhasrisenfrom$4millionin2004to$31milliontoday，saidJohnLehr，CEOofFoodAllergyResearch&Education，aWashington，D.C.，nonprofit.　　“Butmoreworkisneeded，”hesaid.“Scientistsdonotyetknowwhytherehasbeenanincrease

6、infoodallergy1）prevalence.”　　Foodallergiesinvolvetheimmunesystemandcanbelife-threatening.　　Bahnaemphasizedthattruefoodallergiesaremuchlesscommonthanpositiveskintestsshow.Forexample，peanutallergiesaffect1percentofthepopulation，andofthose，onlyatenthareseverely2）ana

7、phylactic，capableofcausingasudden，severeandpossiblylifethreateningreaction.Ninetypercentofpeanutreactionsarelimitedto3）gastrointestinaland4）dermatologicalor5）wheezingsymptoms.　　Often，allergiesare6）overdiagnosed，whichcanleadtoundue“psycho-socialimpacts”onthechild，

8、Bahnasaid.BothLehrandBahnastressedhavingaproperdiagnosisanddetailedmanagementplanfroman7）allergist.　　Forthosewhodosufferfromlife-threateningfoodallergies，lifec