Seems hard to believe.

When I come home from being among people, I blow my nose and wash my hands + face, and I feel like that helps, too. I mean, logically it should help, since I'm physically removing bacteria and whatnot.

But yeah, I don't know, feels a bit weird that we're only telling people to wash their hands, when airborn bacteria/viruses are a thing...

Water did better than medicine? Couldn't see at a glance if it was statistically significant though.

What about mouthwash? Lol

What is the mechanism?

Physically removing the bacteria?
Did starting the habit of 3x gargling make them more aware of other issues and start making changes in life?

Also, did they gargle at morning, afternoon, evening/night etc?