COVID-19 is a modified Coronavirus(1). Coronaviruses are first cousin to the Rhinovirus which cause the lions share of head colds. One guess which family causes the rest of them: coronaviruses.
Coronavirus and Rhinovirus are positive stranded RNA virus which means their genetic material is the single stranded RiboNucleaic Acid (RNA). They differ significantly from DioxyNucleaic Acid (DNA) based viruses. RNA viruses do not have double-stranded genetic material of DNA viruses and are much sma