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.
Definition of Primary immunodeficiency disease. Primary immunodeficiency disease: A disorder caused by an inherited flaw in the immune system that increases the susceptibility to infections.Primary immunodeficiency diseases are unlike secondary or acquired immune deficiency diseases, which are caused by infectious, chemical or radiological agents.efinition of Primary immunodeficiency disease. Primary immunodeficiency disease: A disorder caused by an inherited flaw in the immune system that increases the susceptibility to infections.