Table 2. Fixed parameter values for the five models.

Parameter	Model A	Model B	Model C	Model D	Model E
Duration of maternal immunity	13 weeks	13 weeks	13 weeks	13 weeks	13 weeks
Duration of incubation period	NA	NA	1 day	NA	NA
Duration of infectiousness
First infection	7 days (severe)	7 days	7 days	7 days	7 days
Subsequent infections	3.5 days (mild)	3.5 days	3.5 days	3.5 days	7 days
Relative risk of infection following:
First infection	NA	0.62	0.62	0.62	0.62
Second infection		0.37	0.37	0.37	0.37
Third infection		0.37	0.37	0.37	0.37
Proportion of infections with any RVGE (severe RVGE)
First infection	0.76 (0.24) for	0.47 (0.13)	0.47 (0.13)	0.47 (0.13)	0.47 (0.13)
Second infection	<5 yr olds	0.25 (0.03)	0.25 (0.03)	0.25 (0.03)	0.25 (0.03)
Third infection	Estimated for ≥5	0.20 (0)	0.20 (0)	0.32 (0)	0.32 (0)
Fourth infection	yr olds	NA	NA	0.20 (0)	0.20 (0)
Relative infectiousness (compared to first infection)
Second infection	0.5 for mild vs severe RVGE;	0.5	0.5	0.5	Only individuals with any RVGE
Subsequent infections	asymptomatic infections do not transmit	0.2	0.2	0.2	transmit (see above)
Duration of complete immunity	1 year	1 year	1 year	NA	NA
Type of cases reported	Severe RVGE	Severe RVGE	Severe RVGE	Any RVGE	Any RVGE