Figure 6
IgG sub-class induction after immunisation with 1 μg of H1N1 adjuvanted with 100 μg of mannan. Groups of mice were immunised twice 14 days apart with 1 μg of H1N1 alone, or mixed with 100 μg mannan, and 14 days after the last immunisation serum was harvested and assayed for anti-H1N1 (a) IgG1 and (b) IgG2a by ELISA.