Using Mathematical Models to Assess Responses to an Outbreak of an Emerged Viral Respiratory Disease

2.6 Parameters of transmission and progression of disease

Page last updated: April 2006

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.

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