I’m a handful of years younger than you and I was armed for COVID, which I got from my wife a couple weeks back.
I had COVID-19 for 1.5 days. She had it for two and a half weeks, yet the same regimen, albeit, started mostly one day delayed, due to being on vacation.
COVID-19 should have been worse for me than her, due to age and other characteristics.
There are odd little variations that make results vary. For example, I’ve read glutathione levels are important to recovery and those who take acetominophen around the clock for chronic pain are likely to have depleted glutathione levels.
Then there are ace inhibitors in some prescription meds (blood pressure) which reduce binding etc. The details seem to sway our succeptibility.
Lots of possibilities. An even more extreme example is a couple who are friends of ours. The wife is in her mid 40’s and is a close friend of my wife’s, the hubby, a “maybe twice a year” “fishing buddy” of mine, is ~ 20 years older than his wife. Kind of a cantankerous old fart — I probably wouldn’t hang with him at all, but he’s got all sorts of health problems and the wives are close, so I feel like I have a responsibility to be a bit “extra-decent” to him. She was a very vivacious, active woman, tho’ a bit overweight, but not grossly so (esp. B4 COVID). Neither eat particularly “healthy” — mostly on her, as she does almost all the cooking - he’s not really up to it, but, he’s slimmer than she is, and she’s just moderately obese. (Maybe needs to lose ~15-20% of her weight.) He has pretty serious COPD and a 20 yard walk on level ground to a fishing spot has him red-faced and wheezing... Due to that, and other likely issues with inflammation, his doc strongly advised him to NOT get vacc’d, but his wife to get the shot as early as possible
Anyway, mid fall of 2020, she comes down COVID & ends up in the ICU. Then has multiple stays (in and out) in the hospital, finally recovering enough by mid-November to further recuperate at home without more hospital stays. But, her lungs were badly damaged, it took a year with therapy so she could go out in cold weather to feed their animals. A vivid memory is me having to go over to their place just after dark on Christmas Eve of 2020 as a nasty cold front was blasting in, to clean and then load up all the feed bins and waterers — in windy 22 deg. and dropping fast conditions. Brrr!!!
My wife’s friend is still not “100%” and may never be, but at least she can feed their animals in all but very extreme conditions, now.
All this in a house with smallish, cramped quarters.
Hubby never got the bug, never had symptoms and never tested positive, despite massive exposure from his wife B4 she developed significant symptoms.
Go figure.