[Steve_Seattle]

It sounds like this family has some underlying vulnerability to Covid-19, even if it isn’t one of the well-known “co-morbidities.”

[House Atreides]

“It sounds like this family has some underlying vulnerability to Covid-19, even if it isn’t one of the well-known “co-morbidities.”
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Yes, as with quite a few diseases, it’s possible that there is an unknown genetic susceptibility. Based upon the following excerpt it appears the dead are a mother and two (presumably) biological daughters:

“She passed away from COVID-19 last week. Days later, her mother, Connie, and sister, Bonnie, followed.”

[JustaTech]

It sounds like this family has some underlying vulnerability to Covid-19, even if it isn’t one of the well-known “co-morbidities.”

My understanding is there is an association between obesity and an abundance of ACE-2 receptors on the surface of cells. The receptors are potential entry points for the virus to get inside the cell and hijack the replication machinery.