Some of that seems common sense.. I don't understand allowing your pet to lick an open wound!!! There is a case in one of my medical books, of an elderly woman who developed a severe infection after allowing her dog to lick the surgical incision from a knee replacement.
And not letting your pets get flea infested...
But not sleeping with them? Washing your skin EVERY time a pet licks you? I think that could actually put you in the opposite direction. There are increasing health problems caused by people being TOO clean. You need some exposure for your immune system to develop properly. Thats why kids get sick so often, their immune systems are still developing. Now if someone has a compromised immune system* its completely different. But for the average joe I think you just need some common sense.
I'm currently laying in bed with my laptop, Tessa is laying next to me, and my foster kitten is curled up on my chest
*my stepsister has a compromised immune system, "bubble boy syndrome" so to speak. No one can visit if they have been sick recently or around anyone sick, and I don't bring my service dog to her house.