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. 2021 Jun 2;2021:5533686. doi: 10.1155/2021/5533686

Table 2.

Summary of historical serum syphilis investigations.

Year EIA total TPPA RPR IgM
2015 — Neg Neg N/A
2018 Detected 1 : 20480 1 : 32 Equivocal
2019 Detected 1 : 20480 1 : 2 Neg
2019 Detected 1 : 20480 1 : 4 Neg
2019 Detected 1 : 20480 1 : 4 Neg
2019 Detected 1 : 20480 1 : 32 Neg
2020 Detected 1 : 20480 1 : 16 Neg