"Antiphospho-what?" Part 2

Just some last thoughts on antiphospholipid syndrome:

From the Mayo Clinic:

The cause of primary antiphospholipid syndrome is unknown. However, some factors are associated with developing antiphospholipid antibodies — though not necessarily developing the syndrome.

These factors include infections, medications, and genetic predispositions. None of which Kari had. In regards to genetic predispositions:

Although the disorder isn't considered hereditary, research indicates that relatives of people with antiphospholipid syndrome are more likely to have the antibodies.