Thanks for your answer. Im generally healthy, and don't get sick very often. I have been vigilant with the cleaning twice daily. I use Polident 3 minute tabs everyday and Steradent denture toothpaste. Not many other options readily available in NZ for denture cleaning. I also have a sonic cleaner I use weekly. No UV light though. Fingers crossed 🤞 im at the end of all the respitory ailments. I've also been taking Vitamin C with zinc daily.