(redirected from Babesia bigemina)
Also found in: Dictionary, Medical.


(invertebrate zoology)
The type genus of the Babesiidae, a protozoan family containing red blood cell parasites.



(or Piroplasma), a genus of protozoa of the order Piroplasmidae, class Sarcodina. The name was given in 1893 in honor of the Rumanian scholar V. Babe§, who first discovered the parasites in 1888 in the blood of cattle.

Some authors divide the genus Babesia into four genera or subgenera (Piroplasma. Nuttallla, Babesiella, and Franca-iella). Babesias are blood parasites of cattle, horses, sheep, pigs, and dogs. They cause a serious disease, babesiasis. In the erythrocytes of mammals babesias multiply asexually, with each one dividing into two or four organisms. Babesias are transmitted by ticks, in whom they reproduce asexually in the intestinal tract or in the intracellular spaces. In this situation forms of babesias can orginate in the ovule of the tick and remain there multiplying asexually. From such infected tick eggs come larvae with babesias in all their organs and salivary glands. When a tick sucks the blood of a vertebrate animal, babesias are transmitted to that organism and they then become lodged in the erythrocytes. In the USSR there are ten species; the main ones are B. bigemina (Piro-plasma bigeminum), B. bovis (Piroplasma bovis, Babesiella bovis), and B. ovis (Piroplasma ovis, Babesiella ovis).


Dogel’, V. A., Iu. 1. Polianskii, and E. M. Kheisin. Obshchaia
protozoologiia. Moscow-Leningrad, 1962.
Levine, N. D. Protozoan Parasites of Domestic Animals and of Man. Minneapolis, 1961.


References in periodicals archive ?
Effect of infection by Babesia bigemina in dairy cattle over milk composition (protein, total solids, lactose and fat) and quality (SCC) compared to cows negative for this etiological agent of tick fever.
The adults dropped from the Babesia bigemina infection-free cross-bred calves were collected, cleaned, weighed and kept in the desiccators.
Palabras clave: Babesia bigemina, aislamiento, cultivo in vitro, antigeno, porcentaje, eritrocitos infectados.
[51] YANG, Y; LI, Q.; WANG, S.; CHEN, X.; DU, A., Rapid and sensitive detection of Babesia bovis and Babesia bigemina by loop-mediated isothermal amplification combined with a lateral flow dipstick.
Eisler, Clinical features associated with seroconversion to Anaplasma marginale, Babesia bigemina and Theileria parva infections in African cattle under natural tick challenge.
Infestations of cattle-fever tick are of concern because these ticks carry Babesia bigemina and B.
Principal molecular markers used to identify Babesia bovis and Babesia bigemina
In 1889, Smith described little bodies in the erythrocytes of infected cattle; he later recognized (1891) them as protozoa, which he eventually named Piroplasma bigeminum (now called Babesia bigemina).
Determinacion de la incidencia a seropositividad, infeccion a Babesia bovis y Babesia bigemina (Hemosporidia: Babesiidae), en ganado cebuino adulto de una finca de cria, en un clima tropical seco de Costa Rica.
Incidence and Antibody Dynamic of Babesia Bigemina in Female Calves from a Production Unit at Crespo Municipality, Lara State, Venezuela
The parasitological examination confirmed Babesia bigemina infection.