REPOSTED FROM Elenie Derva Alexandrakou
“Researchers at the Karolinska Institute in Sweden tested 200 people for both antibodies and T-cells.
Some were blood donors while others were tracked down from the group of people first infected in Sweden, mainly returning from earlier affected areas like northern Italy.
This could mean a wider group have some level of immunity to Covid-19 than antibody testing figures, like those published as part of the UK Office for National Statistics Infection Survey, suggest.
It’s likely those people did mount an antibody response, but either it had faded or was not detectable by the current tests.
And these people should be protected if they are exposed to the virus for a second time.”
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