Table 3.

Fit performance for the MR dataset from March 17 up to September 21 .

Quantity	Symbol	Value
Iterations	$p+1$	34
Sum of squares	$SS\left(\hat{\theta }\right)$	$9.0760e-07$
RMSE	$\hat{\sigma }$	$581.8176$
First-order optimality	${\Vert \nabla SS\left(\hat{\theta }\right)\Vert }_{\infty }$	$9.07e-06$
Norm of step	${\delta }_{\theta }^{\left(p\right)}$	$1.5147e-08$
Mean transmission rate	$({\hat{\beta }}_1,{\hat{\beta }}_2,{\hat{\beta }}_3)$	$(3.7426e-01,1.6679e-01,1.7155e-01)$
Normalized standard errors	$ns{e}_{{\hat{\beta }}_l},l=1,2,3$	$(6.14\text{\%},9.73\text{\%},8.69\text{\%})$
Mean removal rate	$\hat{\gamma }$	$1.7429e-01$
Normalized standard errors	$ns{e}_{\hat{\gamma }}$	$9.54\text{\%}$
Mean time delays	$({\hat{\tau }}_1,{\hat{\tau }}_2)$	$(7.7609,11.5809)$
Normalized standard errors	$ns{e}_{{\hat{\tau }}_l},l=1,2$	$(2.76\text{\%},3.60\text{\%})$
Parameters of fraction $f\left(t\right)$	$(\hat{a},\hat{k},{\hat{I}}_m)$	$(23.36\text{\%},2.5772e-03,123.8884)$
Normalized standard errors	$ns{e}_{\hat{a},\hat{k},{\hat{I}}_m}$	$(44.54\text{\%},89.39\text{\%},\ll 0.01\text{\%})$