Most people get plenty of vitamin D, it only takes drinking milk or dairy, some cheese, people are more more likely to be deficient in ZINC which is something that the immune system needs. I know Ive had the classic "getting a cold" sore throat/tongue over the years and if I took zinc or a multi vitamin with 100% or more of the RDA for it ASAP, and again at bed time, the sore throat goes away and never develops into the cold.
But if several hours go by, I still got the cold but mild one, so I learned many years ago to take the zinc right when that sore throat/sore spot under the tongue starts like when I get out of bed,and another dose later in the afternoon and one more at bedtime- midnight, the cold never develops.
It's no coincidence, it's happened many many times, and I lost count of how many times I'd get that sore throat a number of hours after shopping at the supermarket, the cashers are THE biggest source of illness there is in the store, because they have contact with EVERYONE, their cash and change, coupons, and tough everyones groceries and bags. I dont know how many times Ive seen cashiers coughing in their hand and then touching groceries on the conveyor!
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I have no idea how I got it because I practice social distancing, do not have anything to do with crowds and wear a mask. On Christmas day it was just the wife and I... no visiting other people not even the grandkids.
Like many of you I do have to pick up groceries now and then but I have a list, am in and out fast and schedule so I can do the shopping when I believe the store will be less crowded.
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The problem there is;
1) masks usually dont fit well, gaps
2) anything you TOUCH in public could be contaminated, that includes door handles, shopping cart handles, cash/change, the pen at the checkout if writing a check, the touch screen if you used a debit card and PIN.
Once you contaminate your hands at the grocery what's the next thing you do?
You reach for your CAR KEYS, now you cross- contaminated the keys which includes your front door key, the car door handle, the steering wheel.
Some of your packaging from the supermarket and the plastic bags can also be contaminated and you brought all this inside and put them on the kitchen counter.
Now putting groceries away you contaminate the fridge handle and cabinet door handles, you could wash your hands NOW but the minute you go to open the fridge or cabinet afterwards- you cross contaminate your hands from them.
If you dont believe it possible, I remember there being something like a colored wash off thing you can apply to your hands to visually see how much you leave behind on everything you touch. I suppose one could apply some hand cream or something and walk around and touch things and you'll see how much if left on everything.
I suspect this is how you caught it.
When I shop I do what you do BUT I wear disposable nitrile gloves in the store, at the PIN machine, and take the gloves off. At home I put on another pair, get the bags out, thorow them away, wash glass jars and plastic containers etc and throw the gloves away.
I have hand sanitizer too.
You really have to be aware of cross-contamination in the way a surgeon or doctor does, you cant put on rubber gloves, touch a patient, and then with those gloves go and touch the door handle or faucet handle and expect you havent contamined those with the gloves, or that after removing the gloves that door handle or faucet are mysteriously clean!
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Thank you for your kindness, J.!
Thank you for your kindness, Jaminhealth