FIG. 3.

Kinetics of Bartonella-specific antibody appearance. Serum from each time point postinfection for each of the nine cats was examined by Western blot analysis for the first appearance of B. henselae antigen-specific antibodies. Specifically, the serum was analyzed for seroreactivity to those molecular mass antigens indicated on the left (in kilodaltons). The horizontal bars indicate the range of weeks postinfection in which antibodies to a particular molecular mass antigen first appeared in each of the nine cats. The gray squares represent the average week postinfection for each of the nine cats in which antibodies to a particular antigen were first detectable.