By a parameter we mean any constant contained in the model to which a value needs to be assigned to complete the specification of the model. Examples of parameters include
R0 the basic reproduction number,
θ the probability that an individual avoids being infected by a specific infected household member during the course of the latter’s infectious period, and
ƒs the proportion of between household mixing that occurs during school hours.
The models contain a large number of parameters. A full list of these parameters is given in Appendix B, along with their default values and justifying arguments. We use these default values unless indicated otherwise.