Just dont think anything of it and you will be fine. Shedding doesnt do anything its not like you can catch a virus from someone anyway so basically youre afraid of toxins being excreted out someones pores and somehow find its way into your body... youll get more toxic exposure just driving around in your car from the plastic inside of it offgassing and fumes from the engine and we dont think twice about that ... FYI I know of a guy who spends every weekend up a girls double vaxxed butthole and is fine but since he eats raw meat diet its hard to say if you wouldnt get any type of allergic reaction but I doubt it there are more significant contaminants in our environments we deal with everyday. if you really are afraid just eat raw fat like raw butter unsalted about a pound a day it stop any toxins from making it to your brain because they get trapped and taken out the body. If someone tries to tell you to eat some crap made in a lab to save you from crap made in a lab, laugh in his face.