I managed a pharmacy for a couple of years, and I still say that working there stopped me getting the flu. Since I started there in 2004 I've avoided the flu, and even in the 2 years since I left, I've had no real dramas with illness. I think of it as a natural inocculation against the different strains, by being exposed to it all in small quantities I was able to get up the antibodies needed
It was quite a bonus - another was being the only male on staff
(this was back when I was young and unattached
)