Corona virus base type is one of the 3 oldest viruses on the planet. They date back to the earliest multi-cell life forms.
The mammal CV common ancestor base type dates to 55 million years ago.
About 8,000 BCE is the first known human pandemic from CV.
CV is well known to be airborne, so it makes me wonder why China, the WHO, CDC and others said it wasn't for so long.
The common cold, flu, Spanish Flu, COVID-19, SARs, MERs, H1N1, etc, etc, etc, etc are all corona viruses.
Corona viruses are broken down into 4 subgroups. Alpha and Beta primarily affect mammals, though you can find mammals in the Gamma and Delta subgroups. Gamma and Delta primarily affect birds, but you can find Beluga whales, hedgehogs and porcupines under these 2 subgroups.