Is it true that dog's saliva contains antibiotics?

I am interested in reading a detailed answer pertaining to the biological factor if possible.
Answers:    There is some kinds of germs that dog saliva can kill, however there is a lot of things surrounded by dog saliva that can make you sick. E coli for example. They lick their rears, eat their poo, and enjoy their noses in other dog's behinds. They also chew on their paws and take that bacteria in their mouth. Source(s):

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