Origin of babesiosisafter V. Babe? (1854-1926), Romanian bacteriologist
- A tick-borne protozoan infection of animals, such as Texas fever of cattle, that is caused by species of Babesia.
- A human protozoan disease of red blood cells caused by species of Babesia that is transmitted by deer ticks and is characterized by fever, malaise, and hemolytic anemia. In the United States, it occurs chiefly in the Northeast and Midwest. In both senses also called piroplasmosis.