No, they don't have the same issues with salmonella as humans. That is to say, dogs are a great deal
less vulnerable to bacteria than humans (not that it's impossible for dogs to get salmonella poisoning).
The reasons dogs are less vulnerable relate to their physiology: dogs (like other carnivores) have extremely short digestive tracts that are designed to deal with raw meat and bones rapidly. Contrast that to herbivores - which have extremely long digestive tracts (in some cases, multiple stomachs) that are designed to slowly break down difficult plant matter. Or even with humans (a true omnivore) that has a medium length digestive tract that will deal with a range of plants as well as meat with relative efficiency.
The point of the short digestive tract, naturally, is that food does not spend a great deal of time there - and hence bacteria have little opportunity to colonise (very much less opportunity than it does in the human digestive tract).
The second defense that dogs have against bacteria is extremely strong digestive acids. Much stronger than ours - and which serves the two-fold purpose of (a) killing off most bacteria, and (b) aiding the rapid digestion of food.
End result - a healthy dog will not get salmonella from consuming raw meat (assuming that meat to be in decent condition, of course - not talking rotting stuff pulled out the trash, though it's fair to say that most actually WILL deal with that without a problem).
However, this is actually the very reason why raw meat and kibble should not be fed together in the same meal. Dogs - per the above - have a physiology that is uniquely designed to deal with RAW food.
Not with grains and carbs that are in such abundance in kibble. Those sorts of carb-laden foods actually place extreme demands on the short digestive system of a dog, and tie up the digestive acids for hours longer than would be the case with raw meat/bones. If fed together then, the raw won't be digested in such a quick timeframe and can leave the dog vulnerable to the bacteria (or put another way, if you feed the two types of food together, you effectively nulify one of the dog's primary defenses against bacteria). Still probably not an issue if fed good meat (heck, even people eat raw or very nearly raw meat regularly - and have no problems as long as it's fresh). But not a sensible way to feed all the same.
And hence the standard caution remains - feeding raw is fine, feeding raw and kibble is also fine. But feed them in separate meals
