🔬 Discovery

Babesia (red-blood-cell parasite)

Babesia (parásito de los glóbulos rojos)

Date
1888 · confidence high
Place
Bucharest, Romania
Credited to
Victor Babeș
Field
Life & health

What was discovered

The Romanian bacteriologist observed microorganisms inside the red cells of cattle with haemoglobinuria. They were blood-parasitic protozoa that now bear the name Babesia.

Babeș thought it was a bacterium (Haematococcus bovis); Smith and Kilborne (1893) identified them as protozoa and showed tick transmission in Texas fever. The genus Babesia commemorates Babeș.

What it led to

  • babesiosis in cattle, dogs and humans
  • demonstration of parasite transmission by ticks (Smith and Kilborne, 1893)
  • the concept of arthropod-borne disease

Links

Sources✓ verified 2026-10-09