Experimental studies of Elaphostrongylus rangiferi in reindeer (Rangifer tarandus tarandus): Clinical observations

  • K. Handeland Centre of Veterinary Medicine in Tromsø, 9005 Tromsø, Norway; State Veterinary Laboratory for Northern Norway, P.O. Box 652, N-9401 Harstad, Norway
  • A. Skorping Department of Ecology/Zoology, Institute for Biology and Geology, University of Tromsø, 9037 Tromsø, Norway
  • S. Stuen Centre of Veterinary Medicine in Tromsø, 9005 Tromsø, Norway
  • T. Slettbakk State Veterinary Laboratory for Northern Norway, P.O. Box 652, N-9401 Harstad, Norway
Keywords: Cervidae, Protostrongylidae, neurologic disease, reindeer, Elaphostrongylus

Abstract

Clinical observations were made on 12 reindeer calves (Rangifer tarandus tarandus) experimentally infected with 200-1000 infective larvae of Elaphostrongylus rangiferi and autopsied 2.5-196 days post inoculation (p.i). Seven experimental animals autopsied later than 20 days p.i. all developed neurologic signs starting 4-8 weeks p.i. In six of these animals, signs lasted until autopsy 0-12 weeks after onset. The seventh animal recovered completely after a disease period lasting five months. A dose-response relationship between the infective dose and severity of signs was observed. Clinical signs observed in all affected animals were paraparesis, tail paresis and posterior ataxia. Other signs included lowered head, general weakness, lameness, tetraparesis, scoliosis, anal hypotonia, head and neck turn, depression and reduced vision. The prepa-tent period was 4-4.5 months.
Published
1994-12-01
How to Cite
HandelandK., SkorpingA., StuenS., & SlettbakkT. (1994). Experimental studies of Elaphostrongylus rangiferi in reindeer (Rangifer tarandus tarandus): Clinical observations. Rangifer, 14(2), 83-87. https://doi.org/10.7557/2.14.2.1138
Section
Articles