Originally Posted by TenaciousB

Actually, that flu had a first wave in March. It wasn't until the "second wave" in the fall that it did the worst damage and killed the most people: https://www.cdc.gov/flu/pandemic-res...eline-1918.htm

Granted they didn't have vaccines then but even the optimistic estimates of a vaccine for Covid-19 exceed a few months (likely in the 1 year timeframe).