They only thing they are shedding is the COVID virus and everything else that is going around right now. Because they are more susceptible they will give it to the unvaxxed if your immune system is not up to snuff. I have not been vaxxed but got COVID twice (yeah never been tested but my hubby insisted on getting tested before he took his expensive Ivermectin and I assume I had it too since he came down with it first and the second time I got it ,,, the gals in my exercise class all announced they tested positive). I am a pureblood and nasal swab test virgin.