Dr Ardis clarified his message in subsequent interviews. Basically Stew Peters hyped the water aspect. Maybe true, maybe not, but the central point is that the disease is weaponized snake venom, and the approved drug remdesivir is weaponized snake venom, and snakes have their scaly marks all over this thing. Basic aspects of this are in first video. Scaly marks and detailed source materials discussed in the second video.
4-12-22 (20 minutes): https://rumble.com/v10r8pq-dr.-bryan-ardis-snake-venom-update-its-not-about-the-water.html
4-11-22 (2 hours): https://rumble.com/v10myhi-4.11.22-patriot-streetfighter-interview-w-dr.-bryan-ardis-exposing-the-serp.html
The vector for non-injected infection is not conclusive, and he doesn't claim it to be. He thinks it's water, makes some good points as to why.
But the main thing is that Covid is Venom. If you treat it like snake venom you get cured. If you treat it with CDC protocol (more venom) or MRNA vaccines (more venom), you get sicker. HCQ, NAC and ivermectin are all antivenom. And nicotene is a preventative.
Of course it can't be 100% proven until forensic evidence bears it out. But if the symptoms match it should definitely get more attention. But if you accept that it's a weapon as opposed to a naturally occurring virus, wouldn't it be easier to use something that's known to work and lie about it, than to go exploring caves? Doesn't sound farfetched to me, especially if you detach it from the need to poison the water supply.