Let me post an informational link, with some explanation of potential increased resistance: "[HCoV-NL63] is an enveloped, positive-sense, single-stranded RNA v

Let me post an informational link, with some explanation of potential increased resistance: "[HCoV-NL63] is an enveloped, positive-sense, single-stranded RNA virus which enters its host cell by binding to ACE2... Further analysis of HCoV-NL63 pathogenicity seems warranted, in particular because of recent evidence that this virus uses the same cellular receptor as SARS-CoV (ACE2)." https://en.wikipedia.org/wiki/Human_coronavirus_NL63 https://en.wikipedia.org/wiki/Human_coronavirus_NL63