Table 2.

Proportions of Subjects with Detectable Dengue-specific CD4⁺ T cell Cytokine Production from Presecondary Infection PBMC for Subclinical and Symptomatic Groups

		No. of responders: no. of nonresponders
Cytokine	Antigen	SubclinicalSamples	Symptomatic Samples	P (by Fisher's exact test)
TNFα	D1	14:3	6:4	.36 (NS)
	D2	11:6	10:0	.06
	D3	7:10	1:9	.19 (NS)
	D4	16:1	8:2	.54 (NS)
IFNγ	D1	5:12	1:9	.36 (NS)
	D2	8:9	2:8	.23 (NS)
	D3	7:10	1:9	.19 (NS)
	D4	8:9	0:10	.01
IL-2	D1	4:13	0:10	.26 (NS)
	D2	10:7	2:8	.11(NS)
	D3	5:12	1:9	.36 (NS)
	D4	8:9	0:10	.01

NOTE. NS, not statistically significant difference in proportions.