Couple of points:
1) I just finished the best-seller on the 1918 pandemic. Scary.
2) On the other hand, I am also old enough to vaguely remember the Swine Flu Panic.
What flu was going around in late 1972 and early 1973?
My sister was born in January 1973, and a day or two after she and Mom came home from the hospital, Mom came down with the most virulent flu I'd seen (until the one she and Dad caught at Christmas 1999). Are you old enough to remember what strain that was?