Hidden immune weakness found in 14% of gravely ill COVID-19 patients

29 Settembre 2020

From the first months of the COVID-19 pandemic, scientists baffled by the disease’s ferocity have wondered whether the body’s vanguard virus fighter, a molecular messenger called type I interferon, is missing in action in some severe cases. Two papers published online in Science this week confirm that suspicion. They reveal that in a significant minority of patients with serious COVID-19, the interferon response has been crippled by genetic flaws or by rogue antibodies that attack interferon itself.

“Together these two papers explain nearly 14% of severe COVID-19 cases. That is quite amazing,” says Qiang Pan- Hammarström, an immunologist at the Karolinska Institute.

 

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