"Then there’s the matter of the bacteria in each type of mouth’s being specific to that species, a point that further works to render the question unanswerable. A lot of what’s in a dog’s kisser isn’t going to transfer to a human, not because Spot’s maw is somehow “cleaner,” but because what’s there is specific to dogs. (It’s for this reason you’re more likely to gain an infection from a human’s bite than from a dog’s — the bacteria that would potentially be transmitted into the bite would be common to the species of both the biter and the bitee.)"
Weniger Bakterien und weniger gefährlich. *CONFIRMED*
Man soll aber genausowenig jeden Hund küssen, wie man jedes leichtbekleidete Mädchen auf StPauli küssen sollte. Der eigene Hund, dessen Bakterien hat man eh überall im Haus.