Table 2. CD4⁺ T-cell response the day before the i.n. challenge with C. trachomatis MoPn^a.

Vaccine	CD4+ T-cell proliferative response (× 103 cpm) to
	EB	Medium
nMOMP + CTB-CpG	5.3 ± 0.01b, c	0.3 ± 0.05
nMOMP + CT + CpG ODN	3.9 ± 0.8d	0.3 ± 0.1
Ovalbumin + CTB-CpG	1.6 ± 0.5	0.5 ± 0.16
Ovalbumin + CT + CpG ODN	2.5 ± 1.1	0.5 ± 0.2
C. trachomatis	21.4 ± 3.0	0.2 ± 0.02

^aThe values are means ± SE for triplicate cultures. The data are from one of the experiments representative of duplicate experiments. UV-inactivated C. trachomatis MoPn EB were added at a ratio of EB to T cells of 1:5.

^bp < 0.05 as determined by the Student t test for the comparison with the group immunized with nMOMP + CT + CpG ODN

^cp < 0.001 as determined by the Student t test for the comparison with the group immunized with ovalbumin + CTB-CpG

^dp > 0.05 as determined by the Student t test for the comparison with the group immunized with ovalbumin with adjuvant of CT + CpG ODN