Assume the average load per case

This option assumes an average total shedding load per case. In the EpiSewer model, this serves as a scaling factor describing how many pathogen particles are shed by the average infected individual overall and how much of this is detectable at the sampling site. This depends both on biological factors as well as on the specific sewage system.

Usage

load_per_case_assume(load_per_case = NULL, modeldata = modeldata_init())

Arguments

load_per_case

The assumed average total shedding load per case. Must have the same unit as the numerator of the concentration unit. For example, if concentration is measured in gc/mL (gc = gene copies), then load_per_case should also be in gc.

modeldata

A modeldata object to which the above model specifications should be added. Default is an empty model given by modeldata_init(). Can also be an already partly specified model returned by other EpiSewer modeling functions.

Value

A modeldata object containing data and specifications of the model to be fitted. Can be passed on to other EpiSewer modeling functions to add further data and model specifications.

The modeldata object also includes information about parameter initialization (init), meta data (.metainfo), and checks to be performed before model fitting (.checks).

See also

Helper for finding a suitable load per case assumption: suggest_load_per_case()

Other load per case functions: load_per_case_calibrate()