http://www.cbsnews.com/news/killer-amoeba-found-in-louisiana-water-system/
Inadequate disinfection of the municipal water supply is the problem there.
Also a problem if you swim in rivers, ponds and other surface water in warm winter areas.
Yes that is the one that goes up your nose and infects your brain. The other was red worms coming out of your faucet but they never said what it would do to you. The red worms were in several small communities east of Houston. I have not heard another word about it.
They probably aren’t allowed to use chemical treatment (chlorine or fluoride)anymore and rely on UV disinfection.