Scene 3 – Airborne and contagious

More bad news has been received from the laboratory. People who become infected with the virus can infect others for up to a week after first contracting the virus themselves. The initial estimates for were that people could only infect others for one day.

How does this change the spread of the virus?

The problem has now become more complex and the activities and resources that go with this lesson help to guide pupils through this increase in difficulty.