Human body

AIDS is the final, life-threatening stage of infection with human immunodeficiency virus (HIV). AIDS stands for acquired immunodeficiency syndrome.… See more » Painter's colic, sometimes called lead colic, is a severe pain in the abdomen that results from lead poisoning. The pain is often accompanied by… See more » Pus is a yellow-white liquid that the body produces during infection. It has lymph and white blood cells. At one time doctors spoke of laudable… See more »