Figure 3 Graph shows the percent reduction of [<sup>3</sup>H]thymidine incorporation of mitogen- or antigen-stimulated PBL proliferation by OspA prepared in saline. ♦, PBL proliferation stimulated by PWM; ■, PBL proliferation by PHA; ▲, PBL proliferation by BCG. Values represent medians±S.E.M. From: Modulation of lymphocyte proliferative responses by a canine Lyme disease vaccine of recombinant outer surface protein A (OspA) FEMS Immunol Med Microbiol. 2000;28(3):193-196. doi:10.1111/j.1574-695X.2000.tb01476.x FEMS Immunol Med Microbiol | © 2000 Federation of European Microbiological Societies. 1