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Product title :

Enhanced laboratory diagnosis of foot and mouth disease by real-time polymerase chain reaction <p> </p>

Author(s) : A.E. Shaw, S.M. Reid, D.P. King, G.H. Hutchings & N.P. Ferris

Summary :

The performance of an automated real-time reverse transcription polymerase chain reaction (RT-PCR) was compared to virus isolation (VI) in cell culture and antigen detection enzyme-linked immunosorbent assay (ELISA) for the laboratory diagnosis of foot and mouth disease (FMD). The World Reference Laboratory for FMD in Woking, the United Kingdom, examined a collection of 334 epithelia received from eighteen countries between August 2002 and January 2004. The results showed that all VI positive (n = 195) and VI and ELISA positive samples combined (n = 204) were also positive by RT-PCR. Depending on the cut-off used, FMD virus genome was detected in a minimum of an additional 60 samples (18% of all samples tested). Furthermore, the RT-PCR generated results in less than one day from test commencement in contrast to up to 4 days to define some positive and all negative samples by VI. The study demonstrates that real-time RT-PCR provides an extremely sensitive and rapid procedure for improved laboratory diagnosis of FMD.

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