SweetSue92
Diamond Member
The answers to all your questions are there at your fingertips to learn. You just don't like what they say. Being practically the first coronavirus we have ever had to fight our immune systems are totally unfamiliar with them. The other vaccines fight diseases that have been around since prehistory. We are the descendants of people who managed to live through continual pandemics of the diseases we finally developed vaccines for. We have strategies to fight the primordial plagues baked into our DNA. The traditional vaccines simply turn on defenses we already have. This is not possible with coronavirus. Our immune system has to be taught to recognize an infection no human has ever faced. Not everyone has an immune response sufficient to provide perfect immunity. Maybe in the future we may have that. At the moment we have a vaccine that slows community spread and significantly reduces fatality. That's the best weapon we have at this point. I hope I have answered your question, not that I have any faith you ever wanted to really know the answers.
What are you talking about.
COLDS are coronaviruses and it's theorized that many people have cross T-cell reactivity to C-19 due to this fact. SARS is a coronavirus. Even without vaccines, not everyone would get ill with C-19 for this very reason. They have cross T-cell immunity.