Acanthotrema spp

From Dog
Adult Acanthotrema felis [1]

Acanthotrema spp are a parasitic trematode of dogs and cats throughout South-east Asia[2].

Species which are pathogenic to dogs include:

  • Acanthotrema felis[1]

The life cycle of this parasite includes snails as first intermediate snail hosts and brackish water fish as second intermediate host. Dogs become infected from drinking contaminated water sources or eating raw or poorly cooked fish or poultry[3] that contain encysted metacercariae[4].

In dogs, the adult fluke normally reside in the lower jejunum, where it shed eggs that are passed in the feces.

Diagnosis is based on coprological identification of eggs, although ELISA tests are available for experimental purposes[5].

Co-infection with other intestinal flukes such as Haplorchis pumilio, Centrocestus armatus, Stellantchasmus spp and Stictodora fascatum is common.

Treatment of this parasite in dogs is relatively effective with praziquantel.


  1. 1.0 1.1 Cho SH et al (2010) Epidemiological survey on the infection of intestinal flukes in residents of Muan-gun, Jeollanam-do, the Republic of Korea. Korean J Parasitol 48(2):133-138
  2. Nguyen TL et al (2009) Prevalence and risks for fish-borne zoonotic trematode infections in domestic animals in a highly endemic area of North Vietnam. Acta Trop 112(2):198-203
  3. Anh NT et al (2010) Poultry as reservoir hosts for fish-borne zoonotic trematodes in Vietnamese fish farms. Vet Parasitol 169(3-4):391-394
  4. Chai JY & Lee SH (2002) Food-borne intestinal trematode infections in the Republic of Korea. Parasitol Int 51(2):129-154
  5. El-Seify MA et al (2012) ELISA and some biochemical tests of heterophyidae infection in laboratory animals. Parasitol Res 110(2):679-687