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Bootscan analyses of four URFs that should be updated as known CRFs. (A), (B), and (C) bootscan plots of suspected CRF64_BC, CRF59_01B, and CRF33_01B strains, respectively. The suspected CRF64_BC strains contained BC.CN.2009.09YNLX219037 sg, BC.CN.2009.YNFL08, and BC.CN.2009.09YNLX047 sg. The suspected CRF59_BC strain was 01B.CN.2007.GX070051, and the CRF33_01B was 01B. MY. 2007. 07MYKLD47. Color images available online at www.liebertpub.com/aid
