There's speculation that an ancestor strain to OC43 was in fact the cause of the 1898 pandemicinstead of influenza. https://en.wikipedia.org/wiki/Human_coronav

There's speculation that an ancestor strain to OC43 was in fact the cause of the 1898 pandemicinstead of influenza. https://en.wikipedia.org/wiki/Human_coronavirus_OC43 https://en.wikipedia.org/wiki/Human_coronavirus_OC43