co-infection of the two viruses in the same cef culture or in a single cell can be demonstrated by staining with acridine orange and by electron microscopy.l this study was conducted with a superinfected live bivalent vaccine ( hvt/ibdv ) in one-day-old specific pathogen-free ( spf ) and conventional white leghorn ( cwl ) chicks .
C0016030
cef
C0007634
cell