Table 2.

Results of sensitivity analysis: impact of the variability in the input variables in influencing variability in the attack number (total cumulative number of infected people), as determined by (i) partial rank correlation coefficients, (ii) standardized regression coefficients, and (iii) factor prioritization by reduction of variance.

Parameter	Partial rank correlation coefficient	Standardized regression coefficient	Sensitivity index (reduction of variance)
infectivity rate (λ)	0.995	0.982	97.7%
incubation period (τ1)	-0.783	-0.146	2.1%
infectious period (τ2)	-0.300	-0.025	0.2%