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Flu,orinfluenza,isacommonillnessthatmakesyoufeelverytiredandweak,andmakesyoucoughandhaveafever.Butrecentlywefindanewkindfluc72H1N1influenzaA.Wefindourselvesinthedarkabouttheterriblefluvirus.Isitquited73fromacommonflu?Theanswerisno,becauseitseemss74toregularhumanfluwithafever,coughandaheadache.Theanswerisy75,becauseithascausedatleast64d76aroundtheworld.AndtheWorldHealthOrganizationhasconfirmed(确诊)about6,500cases.
Thefluvirusfirstappearedinpigsorswines.WHOsaysthevirusisbeingspreadfromhuman-to-human,notfromcontactwithinfected(被感染的)pigs.Scientiststrytoknowclearlyhowitjumpedtohumans.Thestepsareaimedatstoppingfurtherspreadofthevirus.
Porkimportsaren’ta77fromtheareaswhichhaveswineflu.Thoughexpertssaidswinefluisnotconnectedwithpigsandnotspreadbye78pork.
SofargroupsofillnessesseemrelatedtoMexicantravel.Forexample,somestudentsinNewYorkfelli79fromanspringoutinginMexico.Fluvirusescanbespreadbytouching(触摸)yourmouthornosew80unwashedhands.Swineflucanbetreated,butsomanyconfirmedcasess81thatwehadbettertakeearlynotice,incaseitwouldbetoolate.