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## WHAT IS IT?

This program is a COVID model that demonstrates the spread of a virus between organisms.

## HOW IT WORKS

The program works by using the variables you adjust and then using that to control each turtle.

## HOW TO USE IT

Setup: Clears the screen of turtles and spawns in new turtles so it's ready for use.

Start: Starts program and when pressed turtles will start to move.

Number-of-turtles: Determines how many turtles will be present in the model.

Initial-Infected: This determines how many turtles are initially affected when the model starts.

## THINGS TO TRY

Try to change the "initial infected" slider to see how that affects the rate the virus spreads.

## EXTENDING THE MODEL

You can extend the model by making it so the turtles can "die" from the virus over a certain amount of time.

## RELATED MODELS

This model is similar to "Virus Solo" in the Models Library.

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