@1fancydancer I believe I picked them up when I got sick with a bug. I have antibiotics on hand that I had been instructed to take should I get some sort bug, flu, etc but I did not think I had gotten sick enough for an antibiotic....big mistake! Pseudomonas are very difficult to eradicate. I believe I caught my bug when grocery shopping with just a surgeon's mask on and a woman came up behind me in produce and coughed like a maniac. I moved swiftly out of the vicinity but came down with an illness a couple of days later. I never go to the store now without a kn95. We need all the protection we can get.