ZINC IS WORTHLESS, that's why no study mentions it. STOP IT.
No study? Actually, many studies mention zinc in viral replication inhibition. But, quite possibly in an effort to reduce the efficacy of the regimen, zinc has been conspicuously absent from studies which show hydroxychloroquine to be less than effective, studies which also confined the study cohort to people who were in very advanced stages of the disease, often already in ICU and on ventilators and whose prognosis was grim, regardless.
For instance:
Zn(2+) inhibits coronavirus and arterivirus RNA polymerase activity in vitro and zinc ionophores block the replication of these viruses in cell culture (SARS-CoV is specifically mentioned).
https://pubmed.ncbi.nlm.nih.gov/21079686/If you do a search of Zinc as an antiviral you will find a lot of journal mentions of Zinc as an antiviral, even with this Coronavirus. It is useless without an ionophore, which may include Hydroxychloroquine, Quercentin, or even flavonoids. It turns out apples are high in Quercentin, so maybe there is something to the old saw about "an apple a day..."
In addition to acting as a Zinc ionophore, hydroxychloroquine slightly modifies the ACE 2 receptor and reduces the ability of the virus to enter the cell by that mechanism and subtle pH (more basic--less acidic) changes in the cell.
These mechanisms work in concert to slow the viral replication to the degree that the immune system can defeat the virus before the virus defeats the patient. Chloroquine is more dangerous to use than hydroxychloroquine, and that is the reason hydroxychloroquine is used instead. Hydroxychloroquine has a decades long history of being prescribed as an antimalarial and in instances of people with Lupus and Rheumatoid Arthritis, both of which are immune system disorders, in which the immune system is attacking the body itself. I personally know people who have taken hydroxychloroquine for years without ill effect.
For a really nice explanation of the regimen (that You Tube missed), try here:
https://www.youtube.com/watch?v=W9YFXo84lCkKeep in mind that this is a Global pandemic, and not all countries are tied up in the same politics as the US is in this election cycle. The drug, and the disease have been politicized to the degree that likely tens of thousands have unnecessarily died because of politics, starting with nursing home and extended care patients in New York and continuing because of the tremendous misinformation being spread about possible pharmacologies to fight the disease. What should have been simply about science has been polluted with political enmities and the patients suffer as a result.