It's only just long enough since the first wave for proper research on this.
That suggests you are 10x less likely to become infected if you've had it before, and that reinfection is much less likely to be serious.
Only two reinfection cases were found in the study; both were asymptomatic.
The presence of SARS-CoV-2 antibodies confers subsequent immunity in most people for at least six months, a study of healthcare workers in Oxford, UK, has found. Writing in the New England Journal of Medicine ,1 Sheila Lumley and members of the Oxford University Hospitals Staff Testing Group...
www.bmj.com