[chrissam]

> I don't get the scare mongering in this discussion. People are saying to always boil the water, to not cook with hot tap water, etc. Don't these people bathe in hot tap water? Don't they drink cold tap water? Do they all live in areas with super unsafe tap water?

My understanding is that you can generally drink water with this amoeba in it and be fine. This makes sense intuitively - our digestive systems evolved to handle "adversarial inputs".

> Or is there a specific danger that comes from the water going up your nostrils? (Which can easily happen while bathing)

It seems that this particular amoeba only enters the body through the nose, so yes. Also, a significant amount of water doesn't usually go up your nostrils when bathing or swimming unless something goes wrong. And if it does, you experience a painful sensation that will immediately compel you to clear your airway.

But, looking it up, it appears that swimming in amoeba-infected water can lead to infection. Still, I imagine a neti pot is a great way to increase chance of infection because you're pouring lots of water through your nasal cavity, which is not something that happens while bathing or swimming.