Warm water divers beware

[Tamara Thomsen]

I believe that this is the same microorganism that was thought to have afflicted cave diving pioneer Frank Martz in the 60's- leading to his death.  He was known to have conducted decompression while maskless in the Florida springs during a year when this particular amoeba was especially prevalent. 

This is detailed in Sheck Exley's book, Caverns Measureless to Man.  If you haven't read it, I would suggest it for winter reading....