🔬 Discovery

Viral cause of canine distemper

Origen vírico del moquillo canino

Date
1905 · confidence high
Place
Maisons-Alfort, Île-de-France, France
Credited to
Henri Carré
Field
Life & health

What was discovered

French veterinarian Henri Carré showed that canine distemper, a highly lethal disease in dogs, was caused by a filterable virus and not by a bacterium, as previously thought. His conclusions were met with scepticism in the United Kingdom until Patrick Laidlaw and G. W. Dunkin independently confirmed them in 1926, enabling the development of an effective vaccine.

His findings were not accepted in the United Kingdom until twenty years later, when Laidlaw and Dunkin independently confirmed them.

What it led to

  • Canine distemper vaccine (Laidlaw and Dunkin, 1926-1928)
  • Modern veterinary virology

Built on

  • Filterable virus theory

Links

Sources✓ verified 2026-09-28