Figure 3From: Enhanced specific immune responses by CpG DNA in mice immunized with recombinant hepatitis B surface antigen and HB vaccineThe positive proportions (%) of CD80 (bar) and the average fluorescent intensities (line) of mouse DC cells stimulated with saline solution (group 1), 4 μg HBsAg (group 2), 20 μg CpG DNA (group 3) and 4 μg HBsAg+20 μg CpG DNA (group4), respectively.Back to article page