That is a $50 price cut for the PS4, which currently retails at $399. A contest hints at a PS4 price drop. In a screenshot we see the PS4 Approximate Retail Value (ARV) listed as $349. This value is typically the retail price of the device that a customer will pay in-store without any discounts.
Diseases of the White Blood Cells. 1  Neutropenia (pronounced: new-truh-PEE-nee-uh) occurs when there aren't enough of a certain type of white blood cell to protect the body against bacterial infections. 2  Human immunodeficiency virus (HIV) attacks certain types of white blood cells (lymphocytes) that work to fight infection.
White blood cells, or leukocytes,help to fight infections in the body as part of the immune system. Lupus and other autoimmune disorders may lower the number of white blood cells in the body below a normal level. Source: MedlinePlus. Vasculitis is a condition that involves inflammation in the blood vessels. The condition occurs if your immune system attacks your blood vessels by mistake. This may happen as the result of an infection, a medicine, or another disease or condition.