TABLE 1.

Virus titers in the lungs of BALB/c mice inoculated with NL602, NL602/PB2-627K, NL602/PB2-677G, and NL602/PB2-701N viruses

Time after inoculation (days)Virus titer (log10 TCID50/g of tissue)a
NL602NL602/PB2-627KNL602/PB2-677GNL602/PB2-701N
36.0 ± 0.36.4 ± 0.56.5 ± 0.46.0 ± 0.3
64.9 ± 0.34.9 ± 0.25.6 ± 0.85.3 ± 0.4
  • a Geometric mean titers ± standard deviations are given.