This is a good read! 16 of 34 subjects in a #HumanChallengeStudy did not contract covid after a direct 'hit' (droplets in the nose). They were unvaxxed and had no prior known exposure to sarscov2! Some people will never contract COVID19 regardless of their exposure! Lately I have been meeting more and more folks that fall into thiscatergory! https://www.axios.com/coronavirus-resistance-immunity-03339ccd-e525-4897-9861-045bd68aaaec.html