TABLE 4.

Comparison of sensitivities of DENV1 NS1 ELISA, group-specific NS1 ELISA, and Panbio NS1 ELISA for detection of serial dilutions of serum samples from DENV1-infected patients

Serum dilution	No. of samples positive by indicated ELISA/total no. of samples tested (%)
	DENV1 NS1 ELISA	Group-specific NS1 ELISA	Panbio NS1 ELISA
1:10	27/27 (100)	27/27 (100)	27/27 (100)
1:20	27/27 (100)	27/27 (100)	27/27 (100)
1:40	27/27 (100)	27/27 (100)	27/27 (100)
1:80	27/27 (100)	27/27 (100)	24/27 (88.9)
1:160	27/27 (100)	26/27 (96.3)	20/27 (74.1)
1:320	23/27 (85.2)	23/27 (85.2)	17/27 (63.0)
1:640	21/27 (77.8)	19/27 (70.4)	13/27 (48.1)
1:1,280	15/27 (55.6)	16/27 (59.3)	5/27 (18.5)
1:2,560	11/27 (40.7)	9/27 (33.3)	0/27 (0.0)
1:5,120	4/27 (14.8)	1/27 (3.7)	0/27 (0.0)