Previously it was not possible to apply the genetic DIVAprinciple
to the C-strain vaccines. However, recently two assays enabling
specific detection of the C-strain vaccine were published
(Leifer et al., 2009, 2010; Liu et al., 2011). In order to compare the
two assays an inter laboratory comparison trial (ILCT) involving six
European laboratories was organized. Here the results fromthe ILCT
for the two PCR assays with genetic DIVA capability are presented