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\section*{Discussion}  The discussion should include the implications of the article results Case tree plots assist epidemiologists with visualizing and analyzing zoonoses with human to human potential. Case tree plots provide valuable insight  in view of prior work the following ways:   \begin{itemize}   \item see how epidemiology, esp $R0$, is changing over time   \item estimating spillover frequency, which  in this field.   For Data Articles, this section should not be included. turn is useful for identifying animal host. Frequent spillovers -> domesticated or agricultural animals, rare spillovers -> wild animals   \item estimating $R0$ (human to human transmissibility)   \item identifying superspreaders   \item analyzing case outcomes by generation and by cluster   \end{itemize}