I am taking most of what you are (minus the ivermectin), plus a few more things.
I would say that none of this will "prevent" one from getting COVID-19, but it is designed to stop the replication within one's body and to keep it strong during infection until the immune system can ramp up to defeat the virus.
-PJ
I would say “reduce replication” and, if one experiences a high exposure, that makes it all the more difficult for the immune system to catch up. Omicron replicates FAST, luckily, it seems more predisposed toward receptors in the Upper Respiratory Tract (similar to milder flus) than the Lower Respiratory Tract (H5N1)...