WARNING. Video of draining abscess. Potentially something you don't want to see! Cattle's immune systems are notoriously good at creating abscesses. These typically begain as a seeding of bacteria in the tissue, most commonly attributed to small puncture wounds. The bacteria proliferates in the tissue and the immune system responds by walling the infection off, leaving a pocket of pus surrounded by a capsule of fibrous tissue. If left alone, these abscesses will typically burst with time. Someti