You'll have to timestamp or quote it because I don't see it. I have searched the subtitles. No relevant mention of sick, ill, flu, work etc.
I would note the irony that you bemoan people for not believing something when the evidence you cite isn't there - it suggests more caution is required! From my own reading, that sums up the topic: people are open to viral theories but the proof just isn't there yet so believing it is premature. Parkinson's remains poorly understood in both mechanism and cause. It is said to be "a combination of genetic and environmental factors which might include pesticides and head injury". I imagine post-viral consequences could fit within head-injury type risk factors but we are not at a position to make statements of fact about such things.
https://pubmed.ncbi.nlm.nih.gov/22753266/
https://jamanetwork.com/journals/jamaneurology/fullarticle/2...
> So what about Fox and the suspected Leo and Me cluster? Did they all breathe in some environmental toxin in the studio? Or did they perhaps pass the disease to each other? One theory, that has been around for years, is that Parkinson's could be caused - or perhaps triggered - by a viral infection, maybe even influenza.
> Dr Donald Calne, of the University of British Columbia Hospital, is treating two of the cast of Leo and Me. He told the Chicago Sun-Times that studies have found there to be an increased risk of clusters among certain workers who operate closely together - principally teachers, medical workers, loggers and miners. They could, the theory goes, be exposed to more viruses than most people, and this might cause them to develop the disease.