简介：Themultiplexpolymerasechainreaction(PCR)techniquewasappliedtodetecttheSARS-CoV(severeacuterespiratorysyndrome-associatedcoronavirus)specifictargetcDNAfragmentsinthepresentstudy.ThetargetcDNAfragmentsofSARS-CoVweresynthesizedartificiallyaccordingtothegenomesequenceofSARS-CoVinGenBanksubmittedbyTheChineseUniversityofHongKong,andwereusedassimulatedpositivesamples.FiveprimersrecommendedbyWorldHealthOrganization(WHO)wereusedtoamplifythefragmentsbysinglePCRandmultiplexPCR.ThreetargetcDNAfragments(121,182and302bp),aswellasthethreedifferentcombinationsofanytwoofthesefragments,wereamplifiedbysinglePCR.ThecombinationofthesethreefragmentswasamplifiedbymultiplexPCR.TheresultsindicatedthatthemultiplexPCRtechniquecouldbeappliedtodetecttheSARS-CoVspecifictargetcDNAfragmentssuccessfully.