COVID-19 is a disease and SARS CoV2 is the virus so you think why there are different names: it is because the Severe acute respiratory syndrome coronavirus 2 (SARS CoV2) is the virus which infects people so the people get the disease called COVID-19. This is only listed in the video of Peekaboo Kidz which is the channel for kids and even I watch it (because I am a kid developer/ceo