The viral genome load in tissues of C57BL/6 mice infected with 104
TCID50 of each virus strain at 4 and 28 dpi; BRC-4 dpi (A), BRC-28 dpi
(B), OQ28-4 dpi (C), OQ28-28 dpi (D), WE (ngs)-4 dpi (E) and WE (ngs)-28 dpi (F).
The viral genome copies/500 ng RNA of each mouse tissue was calculated with the
Thermal Cycler Dice Real Time System Software based on the respective standard
curves for each virus strain (circles). Dashed line indicates detection limits of
synthesized RNA determined by standard curves. Viral genome load of several samples
exceeded detection limits of synthesized RNA determined by standard curves, and
non-quantifiable samples were not indicated.