1.   Did you know that poor little Edna died in the influenza epidemic?

2.   He was also concerned about the influenza epidemics and studied the virus involved.

3.   Many of the headstones were for children who had died during the influenza epidemic.

4.   Influenza epidemics commonly arise when new strains of the virus, which often originate in birds or pigs in Asia, spread to people.

5.   Worldwide, deadly influenza epidemics occur only when a virus strain mutates dramatically, reinventing itself so that no one is immune.

6.   Over-the-counter medicine sales increased by eight percent after adjustment for the influenza epidemic in the previous year.