> All common colds are a coronavirus and newly discovered ones are novel. Technically not true - coronaviruses cause 15-30% of common colds. The most common c

> All common colds are a coronavirus and newly discovered ones are novel. Technically not true - coronaviruses cause 15-30% of common colds. The most common cause of the common cold is rhinovirus (30-80%); coronavirus is next, followed by influenza (10-15%), adenovirus, and then other viruses like RSV. The rest of your comment is fairly likely IMHO, though.