> I believe, however, that the viruses that represent the common cold (rhinoviruses) can be definitely characterized as being much more benign in regards to sym

> I believe, however, that the viruses that represent the common cold (rhinoviruses) can be definitely characterized as being much more benign in regards to symptoms. There are at least four endemic cold-coronaviruses, plus the adenovirus family, plus a bunch more. The severity of most of these respiratory infections depend a lot on patient comorbidities, and immune history.