A simple calculation for the next-generation matrix, allowing for
heterogeneity in social contacts and optionally, a reduction in the
proportion of each age group remaining susceptible.
This assumes a single susceptible stratum with full susceptibility, and will
be updated in future versions to account for the addition of vaccination
strata with reduced susceptibility.
Usage
get_ngm(country, infection, p_susc = NULL)
Arguments
- country
A <daedalus_country> object.
- infection
A <daedalus_infection> object.
- p_susc
A sequence of length 4 (the number of demographic groups)
giving the proportion of susceptibles in each demographic group.
Value
A numeric matrix of dimensions \([4, 4]\) where the number of rows
and columns is the number of demographic groups.
Details
Follows the methods in Diekmann and Hesterbeek (2010) J. Roy. Soc. Interface,
<doi.org/10.1098/rsif.2009.0386>.