Final answer:
A rapidly spreading, worldwide influenza outbreak is an example of a pandemic illness.
Step-by-step explanation:
Influenza, or flu, is a contagious respiratory illness caused by influenza viruses. Influenza spreads around the world in seasonal epidemics. An epidemic is an outbreak of a disease within a population of people during a specific time. A rapidly spreading, worldwide influenza outbreak is an example of a pandemic illness. A pandemic is an epidemic that spreads through human populations across a large region or even worldwide.