TYB
If you really believe that the looking glass allows for time travel, then please go back and watch moar hollywerid scifi bullshit movies.
Tbh, a deadly virus tends to mutate into a less lethal strain over time.
It can't replicate if it destroys it's host too quickly.
I've read that there were multiple strains, 3 if I remember correctly.
Maybe that's got something to do with it?
>The flu's rate is about .01%
"We estimated an average of 389 000 (uncertainty range 294 000-518 000) respiratory deaths were associated with influenza globally each year during the study period, corresponding to ~ 2% of all annual respiratory deaths."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6815659/
So I was curious and looked up the stats on seasonal Influenza:
CFR: 0.1%
IFR: 0.04%
https://en.wikipedia.org/wiki/List_of_human_disease_case_fatality_rates
From the reference in Wiki:
CFR: The fatality rate that has been cited most often is 0.1%, which happens to be about what you get if you divide the Centers for Disease Control and Prevention’s estimates of U.S. influenza deaths over the past nine years by its estimates of symptomatic cases.
IFR: University of Oxford infectious disease epidemiologist Christophe Fraser estimated that the actual infection fatality rate (which I will refer to from now on as IFR) of seasonal influenza is 0.04%.
https://www.bloomberg.com/opinion/articles/2020-04-24/is-coronavirus-worse-than-the-flu-blood-studies-say-yes-by-far