Your personal gut health is going to determine whether or not you will pick up the bug, and how bad it will be.
75% of your immune system is in the gut, so if your flora is imbalanced, you will be more likely to get sick from any thing.
To help understand this, lets look at the gut of a commercial grain fed beef cow.
Because cows are herbavores, they are unable to properly convert grain.
Their gut becomes abnormally acidic, and as a result, they have a bacteria called feed lot E.Coli.
If you eat contaminated meat, your acidic stomach matches the acidic stomach of that cow, and where we would normally be able to effectivly fight off the E.Coli,
it instead thrives and wreaks havoc.
So, keep your chickens healthy, without the use of antibiotics, and improper feeding. Keep yourself healthy in the same way.
Then the chances of you having a problem with Salmonella will be next to none.