um yeah
the answer to your question is - um yeah
covid is an RNA virus so has a high mutation rate - which your Sunny Sun cd have told you. Many variations = flu imply - you may need one every year. The covid genome is longer than other RNA virus because it has a proof reading apparatus which limits the mistakes/mutations. I dont think your sunny Sun went that far
differences - flu exists in an animal reservoir and we dont know if there is an important one in animals yet. Mink - lorra lorra dead mink in Denmark
This is not bonka Boris' fault - or whoa to Wuhan
we are where we are and stuck wivvit
( I thought I descended to fluent AB quite well there)