The transcription profiles of chiA and v-cath genes present in the AcMNPV and in vAgp2100Cf.chiA/v-cath genomes were similar, during infection of insect cells (UFL-AG-286 for vAgp2100Cf.chiA/v-cath and Sf-9 for AcMNPV), with a progressive increase from 6 h p.i. until 48 h p.i. However, the transcription level of chiA decreased after 48 h p.i. in Sf-9 cells infected with AcMNPV, when compared to chiA expression in UFL-AG-286 infected with vAgp2100Cf.chiA/v-cath. Here, CHIA is linked to infection.