Written by Robby Berman on April 22, 2021 Fact checked by Rita Ponce, Ph.D.
Scientists are planning a trial that will determine whether or not people who have had COVID-19 are now immune to the virus that causes it. STEVE PARSONS/Getty Images
Experts still have a lot to learn about the likelihood that people who have had COVID-19 can contract SARS-CoV-2 again.
Scientists at the University of Oxford in the United Kingdom have announced a human challenge trial to gather hard, precise data that will provide a better understanding of how reinfection works.
Under carefully controlled conditions and for research purposes, scientists will reinfect the participants in the study with the original SARS-CoV-2 variant.