- A dictionary of medical eponyms


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    Piroplasma; a genus of the order Haemosporidia that consists of parasites - intra-cellular non-pigmented sporozoa - found in the blood of cattle, sheep, horses, dogs, and other vertebrate animals. They are transmitted by blood-sucking ticks. They infest red blood cells, bringing about their destruction with resulting haemoglobinuria. Babesia bigemina is the causative organism of Texas fever in cattle. Babesia bovis is the causative organism of haemoglobinuria and jaundice (red water fever) in cattle. They are non-pathogenic to man.


    • Theobald Smith and Frederick Lucius Kilborne (1858-1936):
      Investigations Into the Nature, Causation, and Prevention of Texas or Southern Cattle Fever.
      Washington, Gvt. Printing Office, 1893. U. S. Bureau of Animal Industry, Bulletin No. 1.
      Discovery of the parasite of Texas cattle fever, Pyrosoma bigeminum, and proof that its transmission is due to the cattle tick, BoƓphilus bovis. This was the first demonstration of arthropod transmission of disease. Pyrosoma bigeminum is now known as Babesia bigemina, and BoƓphilus bovis as Babesia annulatus.

    What is an eponym?

    An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

    What is Whonamedit?

    Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.


    Whonamedit? does not give medical advice.
    This survey of medical eponyms and the persons behind them is meant as a general interest site only. No information found here must under any circumstances be used for medical purposes, diagnostically, therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be affected, by any condition mentioned here: see a doctor.