From here: Coronavirus: the science explained - UKRI Above all, do not "pick your nose" or put your hand in your mouth for any reason. Moreover, wash your hands after coming in from the outside. Particularly after shopping. Ever see how the products are stocked on shelves in the supermarket? By hand - surprise, surprise! I wear very thin plastic see-through gloves when shopping that I throw away after usage. Caveat emptor* ... *Meaning "Buyer beware". (Yes, from Roman times.)
We've been fed so much fear and propaganda thru all this I use no sanitizers, no gloves, NO MASKS and TRUST my knowledge...