Table 1. Diagnostic results of dengue patients and their accompanying household members.

Family	Identification	Infection status		Patient's sample	Presumptive positive dengue			Neutralizing antibodies
		Confirmed dengue positive	Presumptive positive dengue		PCR	IgM	HI	Dengue 1	Dengue 2	Dengue 3	Dengue 4
1	P1	√		P1a	Negative	Negative	160	80	<10	<10	<10
				P1c		Positive	640	320	<10	<10	<10
	H1		√	H1	Negative	Positive	640	<10	320	<10	<10
2	P2	√		P2a	Negative	Positive	320	160	20	<10	<10
				P2c		Positive	640	320	<10	<10	<10
	H2		√	H2	Negative	Negative	640	<10	80	320	2560
3	P3	√		P3a	Negative	Positive	640	80	20	<10	<10
				P3c		Positive	1280	160	40	<10	<10
	H3		√	H3	Negative	Negative	640	>640	<10	<10	<10
4	P4	√		P4a	Negative	Negative	40	<10	<10	<10	<10
				P4c		Positive	160	<10	20	<10	<10
	H4		√	H4	Negative	Negative	2560	640	<10	<10	<10
5	P5	√		P5a	Negative	Positive	640	160	20	<10	<10
				P5c		Positive	2560	1280	<10	<10	<10
	H5		√	H5	Negative	Positive	5120	320	<10	<10	<10
6	P6	√		P6a	Negative	Positive	320	640	<10	<10	<10
				P6c		Positive	>10240	5120	<10	20	<10
	H6		√	H6	Negative	Positive	640	640	<10	<10	<10
7	P7	√		P7a	Negative	Negative	2560	640	40	<10	<10
				P7c		Negative	>10240	>10240	80	<10	<10
	H7		√	H7	Negative	Positive	640	320	<10	40	<10
8	P8	√		P8a	Negative	Negative	2560	2560	40	>10240	20
				P8c		Positive	>10240	>10240	80	>10240	20
	H8		√	H8	Negative	Negative	2560	320	20	<10	<10
9	P9	√		P9a	Negative	Positive	>10240	2560	<10	<10	<10
				P9c		Positive	>10240	5120	20	<10	<10
	H9		√	H9	Negative	Negative	5120	<10	<10	<10	160
10	P10	√		P10a	Negative	Negative	1280	160	<10	<10	<10
				P10c		Positive	>10240	640	<10	<10	<10
	H10		√	H10	Negative	Negative	2560	<10	<10	<10	80
11	P11	√		P11a	Dengue 1	Negative	<10	160	640	640	160
				P11c		Positive	1280	160	>2560	>2560	>2560
	H11		√	H11	Negative	Positive	>10240	>2560	>2560	>2560	>2560
12	P12	√		P12a	Negative	Positive	160	160	>2560	>2560	2560
				P12c		Positive	>10240	160	>2560	>2560	>2560
	H12		√	H12	Negative	Positive	<10	40	160	10	<10
13	P13	√		P13a	Negative	Positive	<10	160	40	2560	2560
				P13c		Positive	<10	640	640	>2560	>2560
	H13		√	H13	Negative	Positive	<10	160	<10	<10	<10
14	P14	√		P14a	Negative	Positive	20	640	160	40	160
				P14c		Positive	>10240	>2560	>2560	160	2560
	H14		√	H14	Negative	Negative	10	640	<10	40	<10
15	P15	√		P15a	Negative	Positive	20	640	160	40	160
				P15c		Positive	>10240	>2560	>2560	160	2560
	H15		√	H15	Negative	Negative	80	<10	<10	<10	<10
16	P16	√		P16a	Negative	Positive	1280	<10	<10	40	<10
				P16c		Positive	>10240	<10	<10	2560	<10
	H16		√	H16	Negative	Positive	20	<10	<10	<10	<10
17	P17	√		P17a	Negative	Positive	1280	<10	640	<10	<10
				P17c		Positive	2560	<10	1280	<10	<10
	H17		√	H17	Negative	Positive	10	<10	<10	<10	<10
18	P18	√		P18a	Negative	Positive	10	<10	<10	<10	<10
				P18c		Positive	160	160	<10	<10	<10
	H18		√	H18	Negative	Positive	10	<10	<10	<10	<10
19	P19	√		P19a	Negative	Positive	>10240	>2560	160	640	<10
				P19c		Positive	>10240	>2560	>2560	2560	160
	H19		√	H19	Negative	Positive	1280	40	40	160	40
20	P20	√		P20a	Negative	Positive	640	160	640	<10	<10
				P20c		Positive	2560	160	640	<10	<10
	H20		√	H20	Negative	Positive	640	<10	160	<10	<10
21	P21	√		P21a	Negative	Positive	2560	640	160	40	640
				P21c		Positive	2560	640	160	40	640
	H21	√		H21	Dengue 3	Negative	320	160	160	640	160
22	P22	√		P22a	Negative	Positive	2560	640	160	40	640
				P22c		Positive	2560	640	160	40	640
	H22		√	H22	Negative	Positive	10	<10	<10	40	<10
23	P23	√		P23a	Negative	Positive	5120	40	2560	10	40
				P23c		Positive	>10240	640	2560	10	40
	H23		√	H23	Negative	Equivocal	10240	10	160	10	10
24	P24	√		P24a	Negative	Positive	20	<10	10	<10	<10
				P24c		Positive	40	<10	40	<10	<10
	H24		√	H24	Negative	Positive	320	40	40	40	10
25	P25	√		P25a	Negative	Positive	2560	<10	640	640	<10
				P25c		Positive	>10240	<10	640	2560	<10
	H25		√	H25	Negative	Negative	160	<10	40	<10	<10
26	P26	√		P26a	Dengue 3	Positive	160	<10	<10	160	<10
				P26c		Positive	1280	<10	<10	640	<10
	H26		√	H26	Negative	Positive	5120	<10	2560	1280	<10
27	P27	√		P27a	Negative	Positive	1280	40	1280	10	<10
				P27c		Positive	10240	2560	1280	10	<10
	H27		√	H27	Negative	Negative	640	<10	40	10	<10
28	P28	√		P28a	Negative	Positive	1280	40	640	160	40
				P28c		Positive	5120	2560	640	160	40
	H28		√	H28	Negative	Equivocal	80	10	10	10	10
29	P29	√		P29a	Negative	Negative	<10	<10	10	10	10
				P29c		Positive	10	160	10	10	10
	H29		√	H29	Negative	Positive	2560	40	1280	640	40

*P indicates dengue patient while H indicate household member.

**a indicates acute samples while c indicates convalescence sample.