Fig. 4From: A novel method to rescue and culture duck Astrovirus type 1 in vitroGrowth curves of the rescued virus and the parental virus. DEF cells were infected 0.1 MOI of virus recovered from the full-length cDNA clone and the parental virus. At 24, 36, 48 and 60 hpi, the cells were collected and virus copies were determined as described aboveBack to article page