charles- Try a minimum of 335 million already a few years back, and given your bud Sniffy and his loser Sec of DHS have opened the southern border, another 5 million across the border in the past 2 years.
I can count the number of times I've had real flu on my hands in the past 50 years so maybe once in every 5 years, probably less. I have never taken the flu shot (not "anti-vax" until probably the past 2-3 years) but because I don't get the flu!! By the way, there are actual peer-reviewed papers that show that statistically the number of flu caused deaths has not overly decreased in the 20 years that the flu shots have been available, but whatever, if it makes you feel better, roll up your sleeve.
So, what is your point in the end, that the U.S. is going to have a bad flu year...? Given that "flu" basically didn't "exist" during the winter of 2019/20, what would you expect? Just like the rise of RSV in little kids this year given that most kids less than 3 have not been exposed to the regular infections that they typically get-- pay now (the typical way) or pay later, little kids don't escape the piper when it comes to easily transmitted sicknesses. Virus will virus, let's be thankful the most kids are much healthier and "bullet proof" than kids a couple hundreds of years ago. My German immigrant great grandparents lost 4 out of 6 kids (although the oldest losses weren't actually "kids") during March 1886 in Dakota Territory. A truly sorrowful episode that my great grandparents probably never fully recovered from but it was far from unique for the era. My grandfather was part of the "2nd wave" family that came after 1886.
But you're like 75-80 so yeah, I guess you worry about the flu taking you out so I get your drift. I just turned 60 and think I'm still partly bullet-proof so I guess I'll roll the dice by not taking any more shots except maybe an occasional tetanus one. Everybody has choices to make, you make yours, I'll make mine...