State epidemiologist Anders Tegnell says Sweden ‘probably’ has achieved a fairly high rate of immunity, which will protect Sweden from new outbreaks
State epidemiologist Anders Tegnell of the Public Health Agency of Sweden on July 21 2020. Picture: TT NEWS AGENCY VIA REUTERS/ERIC SIMANDER
“We don’t see cases of people falling ill twice from Covid-19,” state epidemiologist Anders Tegnell said during a media conference in Stockholm. “Hence, our assessment is that if you do get Covid-19 you are immune, even if you don’t develop antibodies.” A recent study from King’s College London showed that the level of antibodies may drop to a degree that makes them undetectable as soon as three months after infection. However, the body also mounts other forms of immunity responses, including from so-called T-cells, which appear to play an important role in protecting against reinfection with Covid-19.
AstraZeneca has signed an agreement to supply up to 400 million doses to European countries from the end of 2020. The company’s joint efforts with the University of Oxford to develop a vaccine showed promising results this week. But Tegnell said that “anything else would have been a disaster for AstraZeneca”.
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