@lemtrada-uk , it was potentially the intermittent self catheterisation (ISC) that caused. We have to be so careful doing it.
If you suffer urine retention, that is another potential cause. And monthly ISC does nothing to help with that. It needs to be carried out a few times a day.
So, on the basis that urine retention is a breeding ground for nasties, I’m sure it would help in the present circumstances.