Journal of Helminthology

Research Papers

Concurrent infections of Fasciola, Schistosoma and Amphistomum spp. in cattle from Kafue and Zambezi river basins of Zambia

J. Yabea1 c1, I.K. Phiria2, A.M. Phiria2, M. Chembensofua1, P. Dornya3a4 and J. Vercruyssea3

a1 Paraclinical Studies Department, School of Veterinary Medicine, The University of Zambia, PO Box 32379, Lusaka, Zambia

a2 Clinical Studies Department, School of Veterinary Medicine, The University of Zambia, PO Box 32379, Lusaka, Zambia

a3 Department of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium

a4 Prince Leopold Institute of Tropical Medicine, Nationalestraat 155, B-2000, Antwerp, Belgium

Abstract

This study investigated interactions among Fasciola gigantica, Schistosoma spp. and Amphistomum spp. concurrent natural infections in Zambian cattle, based on egg and worm counts. In the abattoir 315 cattle were screened for worms of F. gigantica in the liver, Schistosoma spp. in mesenteric veins and/or Amphistomum spp. in the rumen. One hundred and thirty-three (42.2%) of the abattoir-examined cattle harboured one, two or all three trematodes. Of 133 cattle, 50 were randomly selected for worm and egg counts. The mean numbers ( ±  SD) of Amphistomum, Schistosoma and Fasciola were 622.08 ( ±  97.87), 33.68 ( ±  7.44) and 19.46 ( ±  4.58), respectively. A total of 32% harboured all the three trematodes, 66% had F. gigantica and Amphistomum spp. infections, 52% had Schistosoma spp. and Amphistomum spp. infections while 32% had F. gigantica and Schistosoma infections. A positive correlation (P = 0.014) was found between F. gigantica and Amphistomum worm burdens. There were no correlations between Amphistomum and Schistosoma worm burdens and between F. gigantica and Schistosoma worm burdens. It may be concluded that there is no significant cross-protection among these trematodes in cattle in endemic areas.

(Accepted July 02 2008)

(Online publication October 15 2008)

Correspondence:

c1 Fax: +260-01-291190 E-mail: miyabe@yahoo.com