TABLE 3.

Cross-reactivity of WNV NS5 and E protein with SLE patient sera

Samplea	MFI		PRNT titer
	NS5b	E proteinc	SLE virus	WNV
1A	550	953	640	40
1B	892	1,347	1,280	40
2A	1,081	437	320	<10
2B	606	272	320	<10
3A	7,314	492	320	20
3B	5,894	982	640	40
4A	1,157	522	640	10
4B	2,315	828	1,280	40
5A	643	1,582	640	<10
5B	576	1,185	1,280	<10
6A	924	329	10	<10
6B	2,093	1,020	1,280	10
7A	858	456	20	<10
7B	738	214	320	10
8A	215	59	40	<10
8B	324	323	640	20
9A	834	378	80	<10
9B	631	550	160	10
10A	751	196	10	<10
10B	1,272	284	40	<10
11A	778	688	160	10
11B	691	715	320	20
12A	733	864	640	40
12B	1,148	1,388	640	20
13A	734	966	320	<10
13B	1,731	1,645	320	<10
14A	931	409	160	10
14B	802	415	160	10
15A	1,241	522	40	<10
15B	586	678	320	10
16A	980	3,057	5,120	640
16B	1,420	2,740	2,560	640
17A	1,328	1,490	5,120	1,280
17B	1,912	2,845	1,280	2,560
18A	175	1,679	40	<10
18B	188	1,476	80	<10
19A	398	489	40	<10
19B	628	687	160	<10
20A	1,281	591	640	10
20B	2,296	637	1,280	<10

^aTwenty pairs of acute-phase (A) and convalescent-phase (B) sera from SLE-infected individuals were tested.

^bThe cutoff for positivity for NS5 is 4,366. There were 2 positive samples out of 40 (5%).

^cThe cutoff for positivity for E protein is 1,084 (Wong et al., submitted). There were 11 positive samples out of 40 (28%).