Fig. 3From: In vitro screening antiviral activity of Thai medicinal plants against porcine reproductive and respiratory syndrome virusImmunoperoxidase monolayer assay (IPMA) showing the inhibition of PRRSV infection in MARC-145 cells by Tiliacora triandra (TT) extract at concentrations of 312.5, 625, and 1250 μg/ml (a–d) and P. emblica (PE) extract at concentrations of 19.5, 39, and 78 μg/ml (e–h). Scale bar in the figure: 200 μmBack to article page