Infectious hepatitis. (AIDS can, do you know the route of transmission of AIDS? Illiteracy, eating with AIDS patients will not be contagious. Please explain what viral infectious diseases mean? Hemophilia is a group of congenital deficiency of coagulation factors, which leads to hemorrhagic diseases. Congenital factor VIII deficiency is a typical recessive inheritance of sex linkage, which is passed on by women and prone to men. The gene controlling the synthesis of coagulation factor VIII is located on the X chromosome. The sick man marries a normal woman, and the male among the children is normal and the female is the carrier; A normal man marries a carrier's woman, and the children are half patients and half carriers; The patient's male is married to the carrier's female, and half of the boys born have hemophilia, and half of the girls born have hemophilia and half are carriers. About 30% have no family history, and its onset may be caused by gene mutation.

Are you talking about hemophilia infection? I don't know anything at all, and I'm still talking nonsense here, only hepatitis.