With Covid-19 running rampant, I wonder if now wouldn't be a good time to give Adam some version of his original mask/helmet back? Not necessarily because he's vulnerable to the disease, but because all of the "immune to terrestrial diseases" types can still spread dangerous pathogens like viruses and bacteria as unwitting hosts. I realize writers don't generally get into the that sort of thing, but you'd think places like Asgard or the Neutral Zone would have an untold number of super-viruses that are lethal to humans. Thor's cape could be the superhero equivalent of a smallpox-infected blanket.