WordReference Random House Unabridged Dictionary of American English © 2026
swamp′ fe′ver, [Pathol., Vet. Pathol.]
  1. leptospirosis.
  2. Also called infectious anemia of horses. an equine viral disease characterized by weakness and recurring fever, transmitted by contaminated food and water.
  3. malaria.
  • 1840–50, American.

Collins Concise English Dictionary © HarperCollins Publishers::
swamp fever
  1. Also called: equine infectious anaemia a viral disease of horses characterized by recurring fever, staggering gait, and general debility
  2. a US name for malaria
'swamp fever' also found in these entries (note: many are not synonyms or translations):
equine infectious anemia - infectious anemia of horses

Forum discussions with the word(s) "swamp fever" in the title:


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