Health
Scientists trace severe COVID-19 to faulty genes and an autoimmune condition – EurekAlert
An international team led by Jean-Laurent Casanova has led to a breakthrough in understanding why only some people develop severe COVID-19: due to faulty genes or misguided antibodies, they lack type I interferons, proteins vital in protecting against viruses…

IMAGE: Researcher Qian Zhang and her colleagues examine DNA samples shipped to the Casanova lab for clues about why some people develop severe COVID-19.
view more
Credit: The Rockefeller University
More than 10 percent of young and healthy people who develop severe COVID-19 have misguided antibodies that attack not the virus, but the immune system itself, new research shows. Another 3.5 percent, at least, carry a specific kind of genetic mutation.
In both groups, the upshot is basically th…