It would appear by your response that I'm a lot closer to 80 in age than you are.
In my 60s. Semi-retired, healthy, thankful.
If you’re in fair health, stock up on the list of items I left above. I have and I would do that and stay indoors if I was approaching 80.
People who are 80+ deserve our deepest commitment but waiting for a vaccine is not the answer and could be more harmful.