Bald men appear to be at higher risk of suffering severe coronavirus symptoms — a risk factor being named after the Big Apple man who was the first U.S. doctor to die of the contagion, according to a new report.

“We really think that baldness is a perfect predictor of severity,” Professor Carlos Wambier of Brown University told the Telegraph of studies appearing to show strong associations.

The link emerged during studies trying to show why men suffer worse from COVID-19 than women, the UK paper said.

Scientists now believe that androgens — male sex hormones like testosterone — may boost the ability of coronavirus to attack cells.

The same androgens are also understood to be behind baldness, making it a signal of vulnerability to the disease, the report says.

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In one study, almost 80 percent of coronavirus patients in three Madrid hospitals were bald, according to the Telegraph.

The link is now being called the “Gabrin sign,” after the 60-year-old follically challenged ER doctor, Frank Gabrin, who died in his husband’s arms in their Harlem apartment in late March.

Click for more from the New York Post.