Was the same study conducted for influenza in 2017/18? I had a really bad case of flu for about two weeks and feld like I got five years older during that time.

Was the same study conducted for influenza in 2017/18? I had a really bad case of flu for about two weeks and feld like I got five years older during that time. The major problem I see is that we currently watch the whole COVID-19 under amicroscope and discover a lot of horrible things. Actually, if you are a researcher, the only way to get attention is by finding horrible things. If we had done the same for epidemics in the past, would we have found horrible things as well?