Chance is unfortunately vulnerable to this infection though since she has a compromised immune system from the DLE, has been on antibiotics since September, and is considered a senior.
We are taking precautions to prevent transmission. Since it is a fecal to mouth infection, my husband uses a separate bathroom that always has the door closed. Lots of hand washing for 30 seconds (hand sanitizer does nothing for this).
I spend between 1.5 and 2 hours a night sanitizing the bathroom he uses with bleach at a 1:10 concentration. The disinfecting concentration on the back of the bleach bottle is at a 1:33 concentration.
We have started giving Chance probiotics twice a day instead of once a day since the best defense against this is a healthy gut flora population.