By the time 48 hours after infection, the virus is not found, the quantity 0.540 mg/ml concentration and time to 72 hours after infection, the virus is found, the average quantity of 101.5 TCID 50/ml.
By the time 48 hours after infection, the virus is not found at a concentration of 0.540 mg / ml, and 72 hours after infection is found to have viral load averaged 101.5 TCID50 / ml.