. 2011 Jun;18(6):978–983. doi: 10.1128/CVI.00040-11

Table 2.

DENV- and WNV-tested samples that had a >2-fold increase in their P/N value for WNV antigen than for DENV antigen or for which the MAC ELISA result for DENV antigen was negative^a

Sample	DPO	DENV P/N	WNV P/N	PRNT₉₀ titer of antigen to:						PRNT₉₀ interpretation	Presence of DENV NS1
Sample	DPO	DENV P/N	WNV P/N	DENV1	DENV2	DENV3	DENV4	WNV	SLEV	PRNT₉₀ interpretation	Presence of DENV NS1
2A	1	0.9	2.5	64	128	256	64	32	64	DENV	Neg
2B	1	0.2	3.3	16	16	16	16	64	16	WNV	Neg
2C	2	2.8	10.5	256	128	64	32	128	<16	CR	Pos
2D	2	1.5	4.8	64	32	32	128	<16	<16	DENV4	Neg
2E	3	1.3	2.9	32	512	64	16	64	32	DENV2	Neg
2F	4	1.8	5.2	32	16	<16	16	16	16	CR	Pos
2G	4	1.6	3.1	128	32	>512	16	32	16	DENV3	Neg
2H	5	2.4	14.6	64	64	64	16	16	16	CR	Neg
2I	5	1.1	2.4	64	64	128	>512	16	16	DENV4	Neg
2J	5	5.9	13.6	128	>512	128	32	16	16	DENV2	Neg
2K	6	1.3	2.1	128	256	>512	32	32	<32	DENV3	Pos
2L	6	1.9	6.8	>512	>512	>512	64	32	16	DENV	Neg
2M	6	2.8	7.7	>512	>512	256	32	16	16	DENV	Neg
2N	7	3.2	10.3	512	256	512	128	32	64	DENV	Pos
2O	7	1.5	5.6	>512	256	>512	64	16	16	DENV	Neg
2P	8	2.4	14.5	128	256	>512	128	64	64	DENV3	Neg
2Q	8	3.4	10.4	32	32	64	32	16	16	CR	Neg
2R	9	4.9	15.2	>512	>512	256	64	32	16	DENV	Neg
2S	9	0.5	3.3	64	64	128	32	32	16	CR	Neg
2T	10	2.1	5.8	32	64	128	32	32	16	CR	Neg

The samples are listed by day after onset of illness (DPO) and were tested with the MAC ELISA, PRNT₉₀ IgG depletion, and NS1 ELISA. These samples represent those cases with greater reactivity to WNV antigen than to DENV antigen (or were DENV negative) in the MAC ELISA. SLEV, St. Louis encephalitis virus; CR, cross-reactive; Neg, negative; Pos, positive. Boldface indicates the infecting virus.