Fig. 1From: Isobavachalcone inhibits Pseudorabies virus by impairing virus-induced cell-to-cell fusionIBC structure and cytotoxicity evaluation. a Chemical structure of IBC. b Cytotoxicity of IBC in PK15 cells incubated with different concentrations of IBC for 24 h. The cell viability rate was assessed by measuring the absorbance at 490 nmBack to article page