Thank you Armando.
I did note this article references the one I had seen earlier about "pink slime" mold and NTM not being able to coexist - I wonder why I couldn't find it earlier this year when I was searching?
Also, for those concerned about drinking water while travelling - it appears we have 2 viable options - bottled Spring Water (vs purified drinking water) and the commercially available filtering water bottle. I'm heading out for an appointment, but will look up the availability when I get home.
Sue