Table 1.

Number of Subjects Included by Age (N) and Japanese Encephalitis Seroprevalence by PRNT₅₀ (%) According to DENV Serostatus

	Indonesia				Malaysia				Philippines				Vietnam
Dengue Status	Positive		Negative		Positive		Negative		Positive		Negative		Positive		Negative
Age	N	%	N	%	N	%	N	%	N	%	N	%	N	%	N	%
2	13	23%	11	9%	1	0%	21	0%	21	19%	18	22%	3	100%	7	14%
3	19	37%	10	0%	9	11%	12	0%	33	30%	24	8%	9	56%	11	46%
4	18	56%	13	8%	12	42%	12	0%	33	30%	20	10%	14	43%	8	38%
5	27	33%	6	0%	6	50%	25	8%	35	40%	17	6%	13	15%	22	9%
6	14	21%	2	0%	8	75%	10	0%	41	51%	14	7%	12	33%	10	30%
7	21	52%	2	50%	4	0%	9	11%	29	52%	6	0%	8	75%	4	25%
8	14	43%	3	0%	9	22%	10	10%	20	55%	5	20%	11	72%	8	38%
9	14	36%	3	0%	9	44%	9	11%	31	61%	4	25%	9	67%	6	50%
10	23	52%	3	0%	8	25%	4	0%	21	67%	1	0%	13	54%	7	43%
11	13	69%	2	50%	11	36%	8	0%	29	45%	-	-	12	75%	4	25%
12	51	75%	6	17%	30	57%	20	5%	58	64%	12	0%	28	71%	13	39%
13	34	74%	1	0%	24	42%	14	14%	68	75%	8	25%	6	100%	1	100%
14	22	73%	-	-	8	38%	2	50%	51	80%	1	0%	-	-	-	-
Total	283	54%	62	8%	139	41%	156	6%	470	55%	130	11%	138	59%	101	31%

Abbreviations: DENV, dengue virus; PRNT₅₀, 50% plaque reduction neutralization test.