Never heard of it....................
Maybe six or seven years ago in Seattle I had a sinus infection. I had used tap water with a netti pot off and on for years.
I mentioned to my doc that someone in Mississippi had died from brain amoeba due to using netti pot. She said, “Well, that was in the South. Here we have good tap water.”
A year later a Seattle woman died of brain amoeba due to using tap water. I use Arm and Hammer saline spray to clear my nose,