PANDEMIC: How do víruses spread through a population?
Act One: Spread It
1. In a small town of 200 people, imagine one person is infected with a contagious virus,
and that anyone who's infected spreads the virus to one new person each week Using
the table below, show how the infected and healthy populations change during the first
ten weeks of the outbreak.
Week
0
1
2
3
4
5
6
7
8
9
10
Infected
1
2.
4
8
16
32
64
128
256
Healthy
199
198
197
0