Вакцина защищает только от тяжелого течения, но не от асимптоматического, поэтому вирус продолжит циркулировать и останется навсегда с нами. “The preliminary results from the Phase III trials of the AstraZeneca/Oxford Covid-19 vaccine were just published in the Journal Lancet. At a high level, the results closely mirror both the Pfizer and Moderna vaccine studies. The AstraZeneca vaccine is 90%+ effective at protecting against severe symptomatic illness.
TL;DR – the key findings in this area are:

The vaccine confers little or no protection from infection by the virus

Re-infection by the virus occurs at the same rate as first-time infections” https://dalewharrison.substack.com/p/results-from-the-astrazenecaoxford