This study suggests exposure to corona cold viruses might give you a more mild reaction to Covid19

[Quixote1818]

If this is true, then why not try infecting a few hundred or thousand volunteers with corona cold viruses and see how they react to Covid19 after they recover? He talks about it around the 4:45 mark of the video.

[dawg day]

1. It might be safer just to find people who have frequent colds-

and monitor them and see who gets Covid and how bad.

Safer than infecting a lot of people with a (usually minor) disease. The colds are common enough, you could find many who qualify without interference.

[Quixote1818]

2. I travel to numerous schools each week so I tend to get a couple of colds a year

I am hoping I have had a few coronavirus colds over the years now. LOL

[dawg day]

5. I read more than a fifth of common colds are corona

So I bet!

I am collecting like tokens aspects that might help protect against a really bad outcome:
I have O+ blood (lower risk).
I have had dozens of colds (hope there's some cosmic reason I had those)!

I don't want to think of the risk factors I have!

[Quixote1818]

9. I think all of those things should give us better odds at a mild outcome

but who knows for sure. Best of luck!

[Demsrule86]

7. I am prone to colds and have not caught Covid thus far.

[tavernier]

3. I caught a bad cold in December

shortly after a Walmart worker, while bending over me to assist me with loading a product in my cart, coughed right in my face. I was upset because my grandson got married on New Year’s Eve and I had been so careful to avoid any sickness. I got over it just barely two days before the wedding, but I still grumped about how inconsiderate she had been. But maybe now I should be thanking here.

[Quixote1818]

4. Coronaviruses are about 20% of colds

https://www.webmd.com/cold-and-flu/cold-guide/common_cold_causes

[Reader Rabbit]

6. This might explain why kids are less susceptible.

Think how many times school-age kids catch and transmit colds! It could also explain why more kids are starting to catch it—they've been out of the germ-factories known as school since March!

[Ms. Toad]

8. I'm guessing that all of mine are coronavirus colds.

I had horrendous colds for a bit longer than the first half of my life. Early in my life they invariably lasted at least a month - with two weeks of intense coughing that made anyone who heard me suggest that I needed to go to the ER. About 1/3 of the time, they turned into bronchitis - occasionally requiring hospitalization.

Then I discovered zinc - and they turned into 3-day colds. The only time I've had a cold longer than 3 days since ~1995/6 was when I have been unable to get zinc lozenges within the first 24 hours - OR - when I have stopped taking them too early. I have not had a single bout of bronchitis since then, nor have I been hospitalized in connection with a cold. It has been an unbelievably life-changing discovery. I've been known to drive more than 30 miles to find a 24-hour store that carried them when I have accidentally run out.

A Cochrane review updated in 2013 summarized 18 randomized controlled trials involving 1,781 participants across all age groups found that zinc – particularly in lozenge or syrup form – “inhibits replication of the virus” that cause the common cold and shortens average duration of the common cold when taken within 24 hours of onset of symptoms at a dose of more than 75 milligrams a day.

A 2010 study led by University of Leiden Medical researchers in the Netherlands sought to understand how zinc inhibited that replication. The team reported that zinc inhibits a cousin of SARS-CoV-2: SARS-CoV, the original SARS of the 2003 outbreak. Click through for details, which get into the biochemical nitty-gritty, but the gist is that zinc throws a wrench in the virus’s RNA-synthesis machine.

https://www.uchealth.org/today/zinc-could-help-diminish-extent-of-covid-19/

As effective as zinc is against my colds, they have to be coronavirus colds.

That means two things for me: (1) maybe I'll have some immunity against COVID 19 and (2) I'm going to be gobbling zinc lozenges if I get any symptoms that are associated with COVID 19. It can't hurt - and it might help.

[Quixote1818]

10. I have noticed my colds have been a lot more mild too by adding zinc and vitamin D

Some are extremely mild. That never used to happen. Maybe it comes simply with age and racking up so many colds over the years too? The body is at least in some position to go on the attack if it has seen something similar.

[Ms. Toad]

11. This was an instantaneous change.

Every cold lasted at least 3 weeks before I discovered zinc. I would literally go through 2 (or more) full family-sized boxes of tissue, and spent at least 30 minutes/day for two weeks solid coughing up phlegm (and another 2 weeks being miserable, but less so).

I use less than half a box now, and barely cough at all - and the cold lasts less than 3 days.

It literally is night and day. And - the few times I have not been able to find zinc soon enough, my colds are back to the same old horrendous beasties I had during the first ~40 years of my life.

It was an act of desperation when I tried zinc. I was heading into my first final exam period in law school & couldn't afford to be nonfunctional for a month. I'm not a believer in homeopathic remedies (the genearal classification given to zinc gluconate), but figured it couldn't hurt to try, but there was at least one study that suggested it was actually helpful. So I tried it with absolutely no expectations at the time - and you could have knocked me over with a feather when it stopped my cold in its tracks.

So - at least for me, it has nothing to do with age or exposure (those would have been gradual changes - and would not revert if I can't get hold of zinc).