In the New York Times Science section is this article; The Coronavirus Attacks Fat Tissue, Scientists Find (subscription paywall)
The research may help explain why people who are overweight and obese have been at higher risk of severe illness and death from Covid.
“This could well be contributing to severe disease,” Dr. Catherine Blish, a professor at Stanford University Medical Center and one of the report’s two senior authors, said. “We’re seeing the same inflammatory cytokines that I see in the blood of the really sick patients being produced in response to infection of those tissues.”
Body fat used to be thought of as inert, a form of storage. But scientists now know that the tissue is biologically active, producing hormones and immune-system proteins that act on other cells, promoting a state of nagging low-grade inflammation even when there is no infection.