@lally - That's the conundrum I'm dealing with. Having just backslid in terms of pain and immobility after going off my anti-inflammatory diet a couple of days, I am accepting that I have PMR 'lurking with intent to loom.' So to me that means keeping healthy is the best defense. I can do that through diet, supplements, exercise (water walking, tai chi), taking plenty of rest breaks and, new to me after talking with my naturopath, is pain management through meditation. She recommended Mindfulness Meditation for Pain Relief by Dr Kabot Zinn. Sounds True app has it.
Now where does vaccine come into play? If I were applying a chemical to a plant pro-actively, I would want to make sure the plant was in good shape before I added that stressor and that the threat warranted it. I'm going to wait for my vaccine until I resume and improve my healthy lifestyle and then perhaps check if I'm likely to be exposed to the virus (e.g., it's rampant around town). Hm. Learning to garden and tend my own physical health simultaneously sounds like a good plan.