Table 2.

SD rats experimental grouping.

Groups (No.)	IIV4 (μg /each HA)	CpG (μg)	Volume (μL)	Number of rats
PBS	0	0	200	6
6 μg IIV4	6	0	200	6
6 μg IIV4 + 50 μg CpG	6	50	200	6
6 μg IIV4 + 100 μg CpG	6	100	200	6
6 μg IIV4 + 200 μg CpG	6	200	200	6
6 μg IIV4 + 400 μg CpG	6	400	200	6