Am I immune in case of a positive result?

At the moment, it is not yet 100% scientifically certain that you are really immune to a new infection after an infection with the coronavirus. But initial studies in humans and monkeys have made researchers optimistic that most people build up immunity after surviving COVID-19.
Other studies and media reports from China and South Korea suggest that people there had contracted the virus multiple times or that the virus had become active a second time. However, according to some virologists, this could be due to the measurement methods, which give negative results at certain measurement times, even though the virus is still in the body.