Meat
processing can, in itself, introduce bacteria into meat (either from the environment or, more likely, from the animal's skin or alimentary canal). So eating, for example, raw beefburgers is probably not a very good idea.
However the muscle tissue of an animal (which is what we eat as 'steak', etc) actually contains very few bacteria. So eating raw steak shouldn't present any problems, as anyone who's eaten in a decent restaurant in France will know!
http://www.bbc.co.uk/food/recipes/steaktartare_88981
Try thinking about yourself. You'll probably be aware that your skin is covered in bacteria and I doubt that you'd want to eat anything which has been in contact with the contents of your rectum. However your muscle tissue is protected from infection by your immune system, so any cannibal tucking into a bit of your 'rump steak' (= muscle tissue from a buttock) would be unlikely to get food poisoning from it!