Do dogs have e-loci bacteria in their hind parts?

my dog is always licking my face or ear. i think all dogs do and i also think they all lick their butts at some point. so why isnt there some massive out break of e coli in people since we all have dogs?

Do dogs have e-loci bacteria in their hind parts?
E coli is naturally found in the gut of mammals such as humans and dogs. There are a number of reasons why such a breakout you describe does not occur.





The main one that springs to mind is that we all carry a natural immunity to certain germs. This could be because we have been exposed to it previously in life and as such our immune system will recognize the germ (in this case the strain of Ecoli particular to your pet) and subsequently, produce antibodies which will fight possible infection from said germ.





Another possibility is that saliva contains enzymes which assist in the breakdown of food and other organic material. Saliva is basically the first part of our (and your dog's) digestive process. As these enzymes are designed to break down organic matter (which would include the bacteria found in faeces - ewww!) then the E coli (if present) would not get the chance to infect us as the enzymes have begun to break the germ down.