Definition of babesiosis in US English:


(also babesiasis)


  • A disease of cattle and other livestock, transmitted by the bite of ticks. It affects the red blood cells and causes the passing of red or blackish urine.

    This is caused by protozoans of the genus Babesia, phylum Sporozoa

    Also called piroplasmosis
    • ‘Babesiasis is usually transmitted by tick bites although there is some non-tick transmission.’
    • ‘The number of symptoms and duration of illness in patients with concurrent Lyme disease and babesiosis are greater than in patients with either infection alone.’
    • ‘For example, I. scapularis may transmit ehrlichiosis, Lyme disease, and babesiosis.’
    • ‘Tick-borne diseases in the United States include Rocky Mountain spotted fever, Lyme disease, ehrlichiosis, tularemia, babesiosis, Colorado tick fever, and relapsing fever.’
    • ‘Southern cattle had acquired immunity to bovine babesiosis - the disease transmitted by these ticks.’


Early 20th century: from modern Latin Babesia, from the name Victor Babès (1854–1926), Romanian bacteriologist.