https://www.dovepress.com/syndromic-surveillance-system-for-mers-cov-as-new-early-warning-and-id-peer-reviewed-article-RMHP#

Link to paper she cited.

Also note the dates on the papers correspond to the first cases of Corona. Coincidence? Then published in Feb.

https://www.dovepress.com/syndromic-surveillance-system-for-mers-cov-as-new-early-warning-and-id-peer-reviewed-article-RMHP#

Link to paper she cited.