Covid-19 immunity could be far higher than antibody tests show, according to new SARS research

Researchers in Singapore

Researchers in Singapore have found a group of survivors of the SARS epidemic in 2003 who have held onto their T cells in the intervening 17 years, providing a glimmer of hope for a long-lasting immunity to Covid-19.

T cells are a type of white blood cell, and are the frontline troops our bodies deploy to fight off disease and infection. In a study led by Duke-NUS Medical School in Singapore, blood samples were taken from 23 SARS patients to check for any remaining effective immune cells.

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