Hepatozoonosis of Dogs and Cats

Vet Clin North Am Small Anim Pract. 2022 Nov;52(6):1341-1358. doi: 10.1016/j.cvsm.2022.06.011.

Abstract

Hepatozoon canis and Hepatozoon americanum are tick-borne infections of dogs transmitted by different tick species, with dissimilar geographic distributions, target organs, and clinical syndromes. H canis is transmitted mostly by the brown dog tick Rhipicephalus sanguineus sensu lato, affects hemolymphoid organs, is associated with anemia and other hematologic abnormalities, and is widely prevalent globally, whereas H americanum is transmitted by the Gulf Coast tick Amblyomma maculatum, causes severe myositis, and is an emerging parasite in the southern United States. Treatment of these 2 infections decreases the parasitic load without elimination. Domestic cats are infected with 3 Hepatozoon species.

Keywords: American canine hepatozoonosis; Hepatozoon americanum; Hepatozoon canis; Hepatozoon felis; Hepatozoon silvestris.

Publication types

  • Review

MeSH terms

  • Animals
  • Cat Diseases* / diagnosis
  • Cats
  • Coccidiosis* / diagnosis
  • Coccidiosis* / drug therapy
  • Coccidiosis* / veterinary
  • Dog Diseases* / diagnosis
  • Dog Diseases* / drug therapy
  • Dogs
  • Eucoccidiida*
  • Rhipicephalus sanguineus* / parasitology
  • United States