Actually they said the genome is very stable so one vaccine will be good for years.
Decades ago I had a really nice patient who came to see me religiously every year. He weighed 450 pounds. Every year I would badger him to lose weight, diet, exercise “because if you don’t you will get diabetes, cholesterol, etc.”. Every year for four years. On the fifth year I looked him in the eye and said, “I hope you can forgive me. I have been hard on you all these years. After all this time I finally see all your numbers are excellent and always have been. For some reason I can’t explain you may be an unusual person for who obesity is not a risk. I can’t explain it but I have come to that conclusion. Please forgive me for badgering you. I promise I won’t do it again.”
People are different. I wasn’t a vet. I didn’t treat herds, I treated people. Medical science couldn’t predict he would be immune to obesity. You have to be sensitive to when a case is unusual and perceive that and act accordingly.
Yes and no, there will be a broad-based vaccine to cover this new family of bugs. Most will not get very sick.
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However, as we do right now, we will get flu vaccines for the current years’ virus’ that mutated from the previous year. Even then, a few recent mutations will make a lot of people sick.