abh_yh_infection

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WHAT IS IT?

This model represents a certain population infected with a disease. There is one initial person infected and if they touch another person, they get infected too. After a certain number of days, or “ticks”, everyone is infected and the simulation stops.

HOW IT WORKS

There are toggles that represent population, setup, and go. There are graphs that represent days past, the %infected, and the virus spread. The toggles can be edited to increase/decrease the population as well as increase/decrease the infection rate. When a person is red, it means they have been infected and can continue to infect other people, and if they are green, they are not infected. There is also a toggle at the top of the screen that represents the speed of the simulation. The larger the population, the faster everyone contracts the disease.

HOW TO USE IT

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THINGS TO NOTICE

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THINGS TO TRY

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EXTENDING THE MODEL

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NETLOGO FEATURES

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RELATED MODELS

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Click to Run Model

globals [%infected]

to setup
  clear-all
  reset-ticks
  create-turtles population
  [
    setxy random-xcor random-ycor
    set shape "person"
    set color green
  ]
  ask turtle 1 [set color red]
  set %infected (count turtles with [color = red] / count turtles) * 100
end 

to go
  tick
  ask turtles
    [rt random 100 lt random 100 fd 1]
  ask turtles with [color = red]
    [
      ask other turtles-here [if random 100 < %infectiousness
        [set color red]]
  ]
  set %infected (count turtles with [color = red] / count turtles) * 100
  if %infected = 100 [stop]
end

There is only one version of this model, created over 2 years ago by Abby Buist Haverkamp.

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