Immunology is a branch of biology  that covers the study of immune systems  in all organisms. The term was coined by Russian biologist Ilya Ilyich Mechnikov ,  who advanced studies on immunology and received the Nobel Prize for his work in He pinned small thorns into starfish larvae and noticed unusual cells surrounding the thorns. This was the active response of the body trying to maintain its integrity. It was Mechnikov who first observed the phenomenon of phagocytosis ,  in which the body defends itself against a foreign body. Prior to the designation of immunity ,  from the etymological root immunis , which is Latin for "exempt", early physicians characterized organs that would later be proven as essential components of the immune system.
Gross Hematuria after Intercourse
Blood in urine (hematuria) - Symptoms and causes - Mayo Clinic
Skip navigation! Story from Body. Cory Stieg. They say that you can tell a lot about your health by looking at the color of your pee : Clear to pale yellow means you're hydrated, and amber to brown means you should probably drink some water ASAP. There are a few outside factors that can influence the color of your otherwise healthy urine. Eating beets, for example, can turn your pee reddish , and asparagus makes your pee smell a little off.
What can cause Blood in the Urine in Men?
Young women are often told, "you should pee after sex. The purpose of this recommendation is to decrease the likelihood that they will develop a urinary tract infection. So does it work?
Authored by Peter J. Grinspoon, MD. It produces the most accurate and reliable results.