For what it’s worth I haven’t had a cold since being diagnosed in 2019. However I put that down to regular outdoor exercise and multivitamin tablets. I had not heard that theory.
Hello HavanaS
I actually asked my Parkinson’s Nurse about this some time ago when I hadn’t had a cold since diagnosis and she said there wasn’t much research but anecdotally others had said the same. Pre diagnosis I regularly had a cold, since diagnosis I had one slight sniffle just before Christmas, I hesitate to even call it a cold, that lasted barely 48 hours and was very mild symptomwise; in fact if I had had my vaccination I would have probably put it down to that.
I have only found one piece of research that found people with Parkinsons Catch fewer colds and are usually mild.