Large-Scale are horrible times of disease and death. Take the 1918 Spanish Flu that could have very well determined the outcome of World War One! And even the Plauge that destroyed half of Europe! Thankfully, we have medical technology today to prevent such outbreaks from happening. Although the influenza virus has costed many people their lives, scientists and doctors have much better control of epidemics today.
But how would you react if you or your loved ones came down with a horrible mutation of the flu? Would you deal with it with your wits or act like the world was going to end. Would you survive to see another day?