Acute Hepatic Failure in Dogs. Acute hepatic failure is a condition characterized by the sudden loss of 70 percent or more of the liver's function due to sudden, massive, hepatic necrosis (tissue death in the liver).
Key Points. Secondary (acquired) immunodeficiencies are much more common than primary (hereditary) immunodeficiencies. Primary immunodeficiencies can affect humoral immunity (most commonly), cellular immunity, both humoral and cellular immunity, phagocytic cells, or the complement system.
Many primary immunodeficiency disorders are inherited â passed down from one or both parents. Problems in the DNA â the genetic code that acts as a blueprint for producing the cells that make up the human body â cause many of the immune system defects in primary immunodeficiency.