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Volume 53, no. 5, p. 1697–1704, 2015. Page 1698, column 1, lines 10–11: “Although we initially reported that seven samples (0.3%), all from 1997, produced amplicons (19), we believe …” should read “Although we initially reported that seven samples (7/222 = 3.2%), all from 1997, produced amplicons in PCRs for two different gene targets (19), we believe ….”
