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| <title>New Disease Wizard</title> |
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| <p>The <em>New Disease Wizard</em> is used to create and define the |
| properties of a new Disease. A file name for the new instance along with the Disease Name must be provided.</p> |
| <p>Parameters that can be specified depends upon the particular disease model selected in the Disease Model drop-down. |
| For example, for an SI model, the parameters are: |
| <ul> |
| <li>Disease Name</li> |
| <li>Population: i.e., human</li> |
| <li>Time Period (TP): In milliseconds, the reference time period all rates are in relation to.</li> |
| <li>Frequency Dependent: Yes or No. If No, the disease model assumes density dependency and transmission rates are scaled according to the local population density.</li> |
| <li>Reference Pop Density: PM/SQ KM. The reference density, only used when frequency dependent is No</li> |
| <li>Transmission Rate (β). This is the transmission (or contact) rate, not the basic reproductive number (R<sub>o</sub>). |
| If 's' represents the fraction of the population that is susceptible, R<sub>o</sub>~sβ/(γ + μ).</li> |
| <li>Non-Linearity Coefficient (ν): Typically ν=1. Must be greater than or equal to 0.0. Incidence is β*S*I<sup>ν</sup> </li> |
| <li>Infectious Recovery Rate (γ): PM/TP*</li> |
| <li>Infectious Mortality Rate (μ ι): PM/TP*</li> |
| <li>Characteristic Mixing Distance: In kilometers, the distance threshold where the population is assumed fully mixed.</li> |
| <li>Road.Net.Inf.Proportion: Fraction per Road</li> |
| </ul></p> |
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| <img src="img/diseasewizard1.jpg" /> |
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| <img src="img/diseaseproperties.jpg" /> |
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