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Distribution of mutations in RVFV subpopulations. Locations of silent mutations (blue) or amino acid substitutions (red) are shown as lines on schematics of the S, M, and L segments of ZH548, MP-12, and rMP-12. UTR, untranslated region; IGR, intergenic region; NAb-I/IV or NAb-II, neutralizing antibody epitopes (17); TMD, transmembrane domain; Pre-A, A, B, C, and D, polymerase motifs of RNA-dependent RNA polymerase.
