The thymus gland is the main organ of the lymphatic system. Located in the upper chest region, the primary function of this gland is to promote the...
Bacteria and viruses are both microscopic organisms that can cause disease in humans. While these microbes may have some characteristics in common, they are also very different. Bacteria are...
Researchers have long attempted to elucidate the role that viruses play in causing cancer. Worldwide, cancer viruses are estimated to cause 15 to 20 percent of all cancers in...
White blood cells are blood components that protect the body from infectious agents. Also called leukocytes, white blood cells play an important role in the immune system by identifying, destroying, and...