....at least as good.
Read the linked Swiss study and the India studies in her paragraphs:
For example, a study in Geneva, Switzerland, of people infected in the first wave showed a 15.5% infection rate in seronegative individuals compared with just 1% in seropositives, giving overall protection attributable to infection of 94% - comparable with that in the original Pfizer vaccine trial.
Another study from India showed that seropositivity protected against both infection and severe disease, and suggested "strong plausibility that development of antibody following natural infection not only protects against re-infection by the virus to a great extent, but also safeguards against progression to severe COVID-19 disease".
