a quick search found:...
User stillobsessed, in the COVID-19 subreddit,
a quick search found: https://www.nature.com/articles/s41592-020-0856-2 https://www.sciencedirect.com/science/article/pii/S089…
Periodic traveling waves in SIRS endemic models
Overview of attention for article published in Mathematical & Computer Modelling, January 2009