Hi. Click green flag to start. The pink dots have got the vaccine and are recovered. The green are healthy. And the red are infected and spread the virus to green. And when red goes to the Vaccine Center it turns pink. Credit to Science buddies on YouTube for the moving and the infecting and I made the Vaccine Center.
I will try and make the infected die after 15 seconds and if the first infected get recovered exactly when the simulation starts just click the green flag again.