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Growth kinetics of recombinant viruses rTGEV-Δ3 and rTGEV-Δ3-TRS3a-GFP in cell culture. Growth of rPUR-MAD-SC11, rTGEV-Δ3, and rTGEV-Δ3-TRS3a-GFP viruses on swine testis cells after infection at (A) low and (B) high multiplicities of infection (0.5 and 5, respectively). Mean values of three experiments are indicated. The standard deviation was less than 30% in all cases (not shown).
