Wow. Highly complex biology, and we are only scratching the surface. I’m still debating whether to get an Omicron booster, what with the likely increase in highly transmissible XXB variants, as well as who knows what is going to come out of China. I think that there may be a valid point that for some people, they can get too many mRNA Covid vaccine exposures. Plus, many of us have had plenty of natural exposure to Covid variants in the past 2–3 years. Each of us needs to make the best risk-reward decision that we can. Unfortunately, most people lack the education to process important information, and for those who can, there really isn’t enough good information.