Table A1.

Tabulation of doubling steps for a single residential building.

Doubling step	Expected cumulative case count	Earliest Day when $A_t>E_n$	Time elapsed	Doubling time interval
$0$	$E_0$	$0$	$0$	$0$
$n$	$E_n$	$t_n$	$T_n$	$T_d=T_n-T_{n-1}$