Figure 2From: Replication characteristics of swine influenza viruses in precision-cut lung slices reflect the virulence properties of the virusesInfectivity kinetics in supernatants of PCLS infected by swine influenza A viruses. PCLS were mock-infected or infected by subtypes H1N1, H1N2, H3N2 swine influenza virus. Up to 7 dpi, infectious virus released into the supernatants of PCLS was titrated at daily intervals by endpoint dilution titration (TCID50/mL; 50% tissue culture infectious dose/mL).Back to article page