Mayo Clinic also sees “male pattern baldness” as a predictor of more serious Covid-19 disease.

If you are over 50, have Type A blood, are overweight, and have male pattern baldness,
consider taking extra precautions.

https://medicalxpress.com/news/2020-07-covid-male-pattern-baldness-factor.html

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However, Dr. Poland says that not all cases of severe COVID-19 can be attributed to one of the known risk factors.

"It's very unfortunate, we see young, healthy kids and young, healthy adults getting very complicated, even fatal disease. So, what we know about the risk factors we know about doesn't explain all of it,"
says Dr. Poland.
"That's why I still tell people, you know, universal precautions are still in order here. This is a serious disease."

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