Vaccines have to change because what they protect against evolve and the more people infected the greater the chance of evolution and the greater the need for new vaccines. Vaccines are based on available viruses, take time to develop and any effect against evolved viruses pure luck.

I wasn't asking why it's different, but how different it is.

The problem with showing actual differences is that the size of differences is very different by age. In general death rates start high at age 0, decline until just before 10 and steady increase every year after that. If you want raw data email me at: pecanjim.bellsouth.net and I will send it.

This is bizarre nonsense. The difference between vaccines (esp mRNA vaccines) is easy to quantify as number of base changes. I just can't find that info. It has nothing to do with death rates.

Getting last year's today. May get the new one in Jan.

Can you get again so soon? Thought 6 months minimum even for compromised folk

4 months here. If this year is anything like last year, I'm going to have a cold from sometime in oct through april so may never be healthy enough to get another.

Oh nice!