Never heard of it, you?
Most commonly it's caled lifegard lung.. been around a long time. It also only occures with indoor pools, spas, and other water features.
Interesting what they say about that chlorine stuff though. 
Interesting yes, but also inaccurate. The effectivness of chlorine is NOt effected by temperature. HOWEVER, at higher temperatures it does "boil off", or evaporate more quickly.
