Table 4.

Comparison of HIA and FRNT results.

		1	2	3	4	6	7
	Number of positive results*	Flavivirus HIA	JEV HIA	DENV # HIA	ZIKV HIA	JEV FRNT50§	WNV FRNT50§
1	Flavivirus HIA	180	138	157	63	28	19
2	JEV HIA	138		118	60	21	18
3	DENV HIA#	157	118		53	26	15
4	ZIKV HIA	63	60	53		8	5
5	JEV & WNV FRNT50	35	27	31	10	28	19
6	JEV ${\text{FRNT}}_{50}^{\S }$	28	21	26	8	-	12
7	WNV ${\text{FRNT}}_{50}^{\S }$	19	18	15	5	12	-

^§FRNT tested subset of 65 sera.

^*HIA titer ≥80, FRNT₅₀ titer ≥10.

^#HIA for DENV-2 and/or DENV-3.