This is probably a thing you should NOT be worried about.
Have anyone, in any society had a confirmed infection?
And if so, how many have not! over how many years?
"The Sporatrichum organism lives in the soil, on plants and can exist in our potting material, especially sphagnum moss."
This meen that it is everywere not only in spagnum for orchids... Why treat spagnumm differently? becouse an outbrak has been traced to spagnum? This is ridiculous. The most cases is known from Rose gardeners as it has been refered to as "rose gardener’s infection"!