Table 2. Parameters from literature and chosen for model.

Parameter	Description	Value	Data source
${\sigma }_{O1}$	Susceptibility (O1s)	0.75	Henderson et al., 1979
${\iota }_2$	relative infectiousness (O1s)	0.5	Kinyanjui et al., 2015
$\nu$	Rate of waning of immunity	two per year	Agoti et al., 2012
${\gamma }_1$	Rate of recovery for under-ones	1/9 per day	Hall et al., 1976
${\gamma }_2$	Rate of recovery for over-ones	1/4 per day	Hall et al., 1976
$b_S$	Community transmission rate at schools	0,1/3,2/3,1 per day	range
$\eta$	Ageing rate for U1s	one per year	model choice
$ϵ$	Base external infection rate (whole population)	10 per day	model choice