Table 3.

The effects of weight parameter $\sigma$ on the average indicators of interest

$\sigma$	Mean $R_0$	Final size	Peak time	Peak value	Humps
0.10	2.6750	273.1550	101	20.4800	Multiple
0.20	2.7300	262.5450	116	19.8050	Multiple
0.30	2.9150	281.3000	88	19.6900	Multiple
0.40	3.0900	257.2750	93	17.2250	Multiple
0.50	3.2800	253.4650	90	16.2850	Multiple
0.60	3.2600	259.5900	65	17.0600	Multiple
0.70	3.3500	285.2350	120	17.4250	Multiple
0.80	3.5950	331.5400	92	24.4600	Multiple
0.90	4.1150	410.6250	117	35.6750	Multiple