> “All I know is there was evidence from the global pandemic that natural reinfection was occurring, and since the vaccine was based on natural immunity, you cannot make the conclusion that the vaccine will do better than natural infection.” She’s right, but it’s more accurate to say the vaccines were _loosely_ based on natural immunity. They only trained the immune system to recognize the virus’ spike protein. Only one part of the virus had to mutate to evade vaccine induced immunity.