Among the most devastating of food-borne illnesses are the E. Coli infections contracted through eating contaminated meat. A recent study confirmed that a healthy and diverse flora in one's own intestines can be protective against invasive pathogens eaten in the meat. The discussion raises several other interesting and important guidelines to consider.
Our own guts keep a healthy probiotic population when we avoid unnecessary antibiotics and consume healthy bacteria on a regular basis - lacto-fermented sauerkraut, yogurt and probiotic supplements come to mind.
And we are of course safer if choose our meat from local farmers, who avoid containment feeding operations and particularly avoid the feeding of the hazardous swill residue of ethanol production.