Covid-19 Antibodies Reduce Risk of Future Infection, Study Finds

Recovered Covid-19 patients have a lower risk of future infection from the SARS-Cov-2 virus for at least a few months, according to new findings from the National Cancer Institute.

The study released Wednesday offers some insight into how much immunity stems from antibodies produced by a natural infection. The findings could guide critical public health decisions, such as when it’s okay to return to the office and how to decide vaccine priority, the NCI said.

“People who are antibody positive have partial protection against getting a new infection,” Douglas R. Lowy, study co-author and the NCI’s principal deputy director, said ...