If you want to tackle the Spanish flue of old, one of my friends happened to pass it. (yes, born 1917) as well as I knew more, - people I grew up with.
This was no laughing matter. You had a huge part of the population in our rather insulated island (ICELAND with 1918 transport, which is rather ...slow compared to modern day's standards) infected. Very much so, enough to screw up just about everything. On top this happened in the coldest climate for a long time, making things even worse in cold housings.
Deaths were of completely unique numbers, including entire families (Parents and all children) being found dead in their homes. All got sick and by the time somebody came to check, they were all dead.
The disease even killed people in Spitzbergen, which (logically) was the first place to look for in the quest of analyzing the virus involved. Corpses in permafrost.
It was not successful, however from human remains frozen up in Alaska, it was established that the Spanish disease was basically the same as what was on in the business of the bird flu.
If this is closely related, and going pig-pig, not to mention with the meat, this is no joking matter.
Well the alarm has been on for years. I hope the best, but fear the worst.