Table 1. The immunogenicity of NCMs after the third immunization.

Group	Immunogen	Rabbit	Titers of antibodies specific for
		No	Immunogen	MPER peptide	MPER (IV) peptide
I	NCM	1	1∶4×105	<1∶400	<1∶400
		2	1∶1×105	1∶1600	1∶800
		3	1∶1×105	<1∶400	<1∶400
Geometric mean titer			1∶1.6×105	1∶635	1∶504
II	NCM(IV)	4	1∶1×105	1∶800	1∶800
		5	1∶4×105	1∶3200	1∶3200
		6	1∶4×105	1∶400	1∶400
Geometric mean titer			1∶2.5×105	1∶1008	1∶1008
III	NCM(TA)	7	1∶1×105	1∶1600	1∶800
		8	1∶1×105	<1∶400	<1∶400
		9	1∶4×105	1∶3200	1∶3200
Geometric mean titer			1∶1.6×105	1∶1270	1∶1008
IV	NCM(TAIV)	10	1∶4×105	1∶12800	1∶12800
		11	1∶4×105	1∶25600	1∶25600
		12	1∶4×105	1∶25600	1∶12800
Geometric mean titer			1∶4×105	1∶20319	1∶16127

Note: “<1∶400” was treated as 1∶400 when the Geometric mean titer was calculated.