Bacteria and your dogs guys, lol. They are dogs, they lick their butts, eat their own throw up, grass, eat out of the kitty litter if they catch me slipping. Your dogs are fine, you can throw a raw meat bone outside and leave it out there for a month and you dog can go and eat it and be totally fine, where me and you would be sick to our stomachs foro days. This is something you don't have to worry about at all. Had a friend who had access to a slaughter house and he would throw the dogs half a cow and let them eat that for weeks on end. His dogs were excellent health and great looking also. Far as the cooking deal, the cooking of the egg is fine for the dogs also. Another conflict is how many times can you feed a dog eggs, I know some that feed them 365 a year, free range eggs and his dogs live long and look good and then some vets say this bad, but vets also offer to feed your dogs science diet and that is posion so take the vets advice on this for what it is worth. The shell is more beneficial to the dog than any other part of the egg so if they are cooked or raw, make sure break the shell up so it doesn't get stuck in their teeth.