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We find your report on bats and severe acute respiratory syndrome (SARS) sensationalist and misleading (Nature552, 15–16, 2017). The important work it discusses does not claim to pinpoint conclusively the source of the SARS outbreak (B. Hu et al. PLoS Pathog.13, e1006698; 2017), as implied by your “smoking gun” metaphor. The rapid rate of evolution of RNA viruses means that SARS could have arisen in one of many areas. Thus, your inference that the strain “could easily” have originated in this bat population is, in our view, unjustified.
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