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SC and SR stand for seroconversion and seroreversion, respectively. P1 stands for period 1 (between Round 1 and Round 2, 6 months), P2 for period 2 (Round 2–3, 6 months) and P3 for period 3 (Round 1–3, 12 months). Ag-ELISA: detection of circulating cysticercus antigen in serum; EITB: detection of specific antibodies in serum.
