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 dilutionNo. of samples positive by indicated ELISA/total no. of samples tested (%)
DENV1 NS1 ELISAGroup-specific NS1 ELISAPanbio NS1 ELISA
1:1027/27 (100)27/27 (100)27/27 (100)
1:2027/27 (100)27/27 (100)27/27 (100)
1:4027/27 (100)27/27 (100)27/27 (100)
1:8027/27 (100)27/27 (100)24/27 (88.9)
1:16027/27 (100)26/27 (96.3)20/27 (74.1)
1:32023/27 (85.2)23/27 (85.2)17/27 (63.0)
1:64021/27 (77.8)19/27 (70.4)13/27 (48.1)
1:1,28015/27 (55.6)16/27 (59.3)5/27 (18.5)
1:2,56011/27 (40.7)9/27 (33.3)0/27 (0.0)
1:5,1204/27 (14.8)1/27 (3.7)0/27 (0.0)