I did a lot of reading and watched interviews of the NY doctor who combined a couple of therapies to deal with his COVID patients. The result was the combination of hydroxychloroquine, zinc, and zpack. What most do not realize is how the first two work together.
There was a study done in South Korea that showed definitively that on a similar virus, that has the same method of replication, that if one raised the level of zinc in cells that it inhibited the replication of the virus, in proportion to the concentration.
The problem was that because zinc is a +2 ion, it needed something to act as a port to get it through the cell's wall. That is what the hydroxychloroquine did, the word for things that do that is ionophor.
For most of us, the problem is that we cannot get the hydroxy to take with zinc for prevention. When I discovered that my Kaiser doctor could not prescribe it for that purpose, I went looking for something over the counter that could do the same thing, act as an ionophor. Luckily, I found some original research that told me that quercetin is an an ionophor for zinc, and we had some in the house because it is very good for treating my wife's hay fever.....so all that we needed to do was pick up some zinc.
Since then, several doctors have done you tube videos about quercetin and zinc, along with vitamin D as a way to decrease the chance of becoming infected with COVID-19., or at least making it less severe if it is contracted. If you look around on Youtube you will find a fair amount of discussions by doctors on the subject. Here are the results of a search on Youtube on the subject.