FIG. 2.

PBMC responses in 37 patients with a history of confirmed blastomycosis. The cells were tested in a primary proliferation assay for response to B. dermatitidis antigens, BASWS (100 μg/ml), and WI-1 (10 μg/ml) and to control antigens of tetanus (1:10) and Candida (1:100). Response to the antigen is expressed as SI, which is the average counts of [³H]thymidine uptake induced by the antigen/average counts induced by medium. The average SI for each antigen is depicted by a horizontal bar.