FIG. 8.
Adoptive transfer of antibody protects SCID-beige mice from B. bronchiseptica lethal infection. Survival of SCID-beige mice intranasally inoculated with B. bronchiseptica, 5 × 105 CFU in 50 μl of PBS. On postinoculation days 1, 45, 90, and 135, mice were given 0.2-ml intraperitoneal injections of either naive serum (open symbols) or immune serum (solid symbols). Sera are described in Materials and Methods. Survival is presented as the percentage of animals alive at the given day postinoculation.