Are dogs' mouths really cleaner than humans?
According to ABC News, this is basically an urban legend. However, unlike the one about the psycho killer with the hook, this story has a grain of truth. Although the mouth of a typical dog is full of bacteria, it's "species specific." So, if a dog were to lick a person, most of the germs wouldn't transfer. "Bottom line -- you're more likely to get a serious illness from kissing a person than kissing a dog."
The myth may have stemmed from the way pups lick their wounds. A dog's tongue gets rid of dead tissue so wounds heal faster. Perhaps folks concluded that dog saliva is "healthy." Hardly the case, but you shouldn't be afraid of licks. They might be gross, but they're not dangerous.
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