Fig. 4From: Development and application of multiplex PCR method for simultaneous detection of seven viruses in ducksSensitivity of the m-PCR method. Templates of pMD-FAdV (a), pMD-DHAV (b), pMD-DEV (c), pMD-DTMUV (d), pMD-NDV (e), pMD-AIV (f), pMD-NDPV (g), and mixture of seven virus plasmids (h). M, DL600 marker; NC, negative control. Plasmids were diluted from 108 to 100 DNA copies/μLBack to article page