Table 4.

D-antigen contents for types I, II and III in each group.

Groups	Treatment	Lot 20160709			Lot 20160711
		I	II	III	I	III	III
7	−20°C, 1 day	66	60	89	70	62	94
8	−20°C, 1 week	63	57	87	69	63	89
9	Vaccine carrier for 3 freeze-thaw cycles	61	55	84	68	60	90
10	2–8°C control	69	65	93	78	68	99