I guess we probably can't extrapolate on the flu or Covid-19, since they are both changing and mutating constantly. What are we even comparing what to? ...as they are both moving targets. I guess some people say 'Covid-19' is no more deadly than 'the flu', but really what is Covid and what is the flu? They are always evolving into something different as they mutate. I guess I was referring to the part in each of them that remains the same throughout time and mutation. Perhaps it's the fear that exists in both of them, I don't know, I'm not a scientist, just a common man hehe...
ex·trap·o·late
/ikˈstrapəˌlāt/
verb
extend the application of (a method or conclusion, especially one based on statistics) to an unknown situation by assuming that existing trends will continue or similar methods will be applicable.
"the results cannot be extrapolated to other patient groups"
The Delta Variant Isn't As Contagious As Chickenpox. But It's Still Highly Contagious
A leaked CDC document compared it to the highly contagious children's disease. Data does not support this claim. Nonetheless, the variant is one of the world's most contagious respiratory diseases.
www.npr.org