Based on previous studies, we chose several factors in the present hemorrhage disease caused by a viral infection, including the coagulation factors: kininogen-1 (kng-1), f2, f3a, f3b and f10, as well as the anticoagulation factors: serine protease inhibitor (serpin) b1, c1, d1, f1, f2b, and g1 [43,44]. This evidence concerns the gene KNG1 and hemorrhage.