Commenter Wolfie at my site wrote:
Nobody is going to be laughing when things really start to get underway. R0 is nearly 50x that of the flu.
The basic reproduction number R0 is the number of secondary cases which one case would produce in a completely susceptible population.
[Cheers to Distant Relative and Charles at N.O.]
You would be wise to have a longterm food and supplies system in place. Whether by incompetence or design, similar outcome.