Coronavirus Thomas Schinecker Switzerland virus covid-19 infection Coronavirus Thomas Schinecker Switzerland

Unsung immune cells take over when covid antibodies wane

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Unsung warriorsT cells, by contrast, are able to kill virus-infected cells, remember past diseases for decades, and rouse fresh antibody soldiers long after the first have left the battlefield.

People infected with another coronavirus that was responsible for the SARS epidemic in 2003, for example, still have a T-cell response to the disease 17 years later.That suggests T cells may still, at least hypothetically, be ready to protect SARS survivors against the infection almost two decades later, and might bolster their defense against Covid-19.“Antibodies wane after a certain period of time," said Thomas Schinecker, who heads the diagnostics unit of Swiss drugmaker Roche Holding AG.

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