Fig 6. Weight loss and lung virus titration in mice inoculated with H4N6 AIVs.

Six-week-old female BALB/c mice (n = 3 mice/group) were inoculated i.n. with 10⁶ EID₅₀ of virus. The body weights of inoculated mice were measured daily and are represented as percentages of weight on the day of inoculation (day 0). The averages for each group are shown (A).The lungs of each mouse in each group were collected at 3 and 5 dpi, respectively, for virus titration (B).