"Knowledge continues to develop. We get to know more and more, and today we think we know that you become immune after an infection, just like with many other infectious diseases," Swedish chief epidemiologist Anders Tegnell said.
https://sputniknews.com/europe/202006051079524977--swedish-state-epidemiologist-claims-antibodies-provide-covid-19-immunity/
https://sputniknews.com/europe/202006051079524977--swedish-state-epidemiologist-claims-antibodies-provide-covid-19-immunity/