Figure 2.

Expansion of hematopoietic compartment in vivo. (A) The spleen weight of each animal infected with an SFFV recombinant expressing a constitutive chimera (as indicated) was determined at the time of termination, and each individual animal from the experiment is represented. Dashed line represents spleen weight of normal uninfected adult mice. (B) The hematocrit of each animal infected with an SFFV recombinant expressing a constitutive chimera (as indicated) was determined immediately before termination (always within 5–6 weeks of infection), and each individual animal from the experiment is represented. Dashed line represents hematocrit of normal uninfected adult mice.