Using a Computer Model: Try It Yourself!
Pick one of the diseases on the left and enter the values from the table into the model. Click “Day-by-Day” or “Autorun” to see how the disease spreads through the population. Vary the “Initial % immunity” value to see how it affects disease transmission.
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Run the model for each disease. Leave the initial % immunity level at “0.” Use this table to set other values. |
| Smallpox |
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| Virulence: high (0.25) Duration: 14 days Rate: high (2.5) |
| Polio |
| Virulence: low (0.01) Duration: 18 days Rate: average (1.0) |
| Measles |
| Virulence: low (0.01) Duration: 8 days Rate: very high (10.0) |
