An individual with acquired hemophiliaB is not born with the condition. … Although the focus of this report is the genetic, or inherited, form of hemophiliaB, it should be noted that another form called acquired hemophiliaB can develop, most commonly … The most famous family with hemophiliaB was that of Queen Victoria of England.
HemophiliaBHemophiliaB is an X-linked genetic disease caused by mutation of the gene for clotting factor IX (FIX). … HemophiliaB is a less common variant of this disease which occurs due to a deficiency of Christmas factor (FIX). … Due to mutations, a deficiency of clotting factor VIII, resulting in hemophilia A, or factor IX, resulting in hemophiliaB, occur.
RESULTS: All 18 children had severe hemophiliaB, and in each an inhibitor antibody to FIX developed. … B. … Laboratory testing for establishment of the diagnosis of hemophiliaB and inhibitor to FIX was done locally at the centers treating these patients.