Fig. 4
From: Characterization of Puerto Rican West Nile Virus isolates in mice
Viremia levels after WNV inoculation. Viremia levels of mice inoculated with Vero–derived (a) and C6/36-derived (b) strains. An ANOVA analysis showed significantly higher peak viremia in mice inoculated with C6/36-derived PR423 isolate when compared to the other groups (*p < 0.001 PR423 vs. NY99). Viremia levels of PR423 on day 2 were also significantly different when compared according to the cell source (**p < 0.0001 PR423-Vero vs. PR423-C6/36 on day 2)