Barb. I have avoided the flu my entire life (including 40+ years pre-PD) and I have never taken a flu shot. However, I used to get about one walloping head cold per year but now I hardly ever get them. Either. When I think about it, I suppose that this development correlates approximately with the onset of my PD, but it also correlates with my moving to the unnatural warmth of LA from colder climes, and with a change in diet, including various supplements.and vitamins (mega doses of vitamin C). Who knows? As we all know too well, the human body is a complex, and sometimes unfathomable amid unpredictable creation. If this posting is dated, I'm catching up on weeks of neglected e-mail. Marty