When I reached the age of 65 the doctor's receptionist 'phoned to ask whether I wanted the 'flu vaccination. No thanks, I said, I have an intact immune system. Haven't been offered it since: no doubt there's a black mark against my name.
Some years ago I was given the job of translating a film about an expedition to Patagonia by an Austrian team. Before they left, they asked the doctor for the appropriate jabs. "No need", he replied; "No people, no germs".
If the number of covid-19 deaths world-wide continues to rise at the current rate (by nearly 0.9% from each day to the next), I calculate it'll reach two and a half million by Christmas Eve -- so much for back to normal. No, I'm not about to leave for Patagonia, but neither do I want to set foot in a doctor's surgery if I can help it.