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. 2003 Jan;10(1):177–179. doi: 10.1128/CDLI.10.1.177-179.2003

TABLE 1.

Relationship between in-house screening WNV-specific IgM ELISA index values and in-house modified WNV-specific IgM ELISA index values for samples with known results in the CDC/SPHL screening WNV-specific IgM ELISA

Group In-house screening IgM ELISA
No. with in-house modified IgM ELISA index:
Index n <1.00 1.00-2.00 2.01-3.00 >3.00
Nonreactive in CDC/SPHL screening assay 0.90-1.10 6 6
1.11-2.00 38 29 7 2
2.01-3.00 15 9 3 3
>3.00 11 5 2 1 3
    Total for nonreactive samples 70 49 12 6 3
Reactive in CDC/SPHL screening assay 0.90-1.10 1 1
1.11-2.00 11 2 6 3
2.01-3.00 7 2 3 2
>3.00 35 3 32
    Total for reactive samples 54 3 8 9 34