FIG 7.

Organ titers following i.p. inoculation. Three- to 4-week-old female Swiss Webster mice were inoculated with either WNV NY99 or an EIII chimera at 100 PFU i.p. Three mice per group were euthanized on days 1, 3, 5, 7, and 9, and blood and organs were removed for titration. Plasma (A) and brain (B) titers were determined at all time points, while liver (C), spleen (D), lung (E), and kidney (F) titers were determined on days 1, 3, and 5. The graphs show individual values with means and standard errors.