Fig. 4From: Growth characteristics of the novel goose parvovirus SD15 strain in vitroThe cell cytotoxic effect and CPE caused by NGPV in infected DEF cells. All the cells were infected with NGPV, and then the cytotoxic effect (a) and CPE (b) were observed at 24, 48, 72, 96 and 120 hpi. Red arrows represent the CPE on DEFs. Each sample was analyzed in triplicate. Groups denoted by (***) indicate a significant difference at P<0.001Back to article page