Answer
See sample answer below.
Work Step by Step
The epidemic starts off with a low count of infected individuals, and then through social contacts, more individuals get infected.
It exhibits an initial exponential growth.
After a certain time of spreading, the growth tapers off, and the exponential curve is "flattened". The reason for this is the agent (virus) has less and less individuals it can be transmitted to (the spread of disease is limited by population).
The exponential growth can not continue indefinitely, so a logistic model is more appropriate.
