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Numbers of distinct human-infective RNA virus lineages (n = 149) in different categories. Three lineage types are distinguished: only strictly zoonotic (SZ), only human transmissible (HT), and both (MX). a) Stacked bar chart of strictly zoonotic, human-transmissible, and mixed lineage counts by genus. b) By virus family. c) By enveloped/nonenveloped. d) By virus genome type. e) By vector borne/nonvector borne.
