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1 January 2004 Distribution of Meningeal Worm (Parelaphostrongylus tenuis) in South Dakota
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Abstract

Heads of hunter-harvested deer (Odocoileus sp.) and elk (Cervus elaphus) were collected from meat processing plants throughout South Dakota (USA) from 1997 through 1999 to determine distribution of meningeal worm (Parelaphostrongylus tenuis) in eastern and western South Dakota. A total of 2,848 white-tailed deer (WTD) were examined for P. tenuis, of which 578 (20.3%) were infected with the parasite. Of 578 deer infected, 570 (98.6%) were harvested east of the Missouri River. Our results indicate that P. tenuis is widely distributed throughout eastern South Dakota and limited to the southcentral region of western South Dakota. Infected WTD were documented in 37 of 44 counties in eastern South Dakota and three of 22 counties in western South Dakota. No meningeal worms were found on the meninges or cranial surfaces of 215 mule deer (Odocoileus hemionus) or 344 elk examined. These findings further define the distribution of the parasite throughout the state. We suggest that the Missouri River acts, in part, as a physical barrier to the westward expansion of P. tenuis to the grasslands of western South Dakota.

Jacques and Jenks: Distribution of Meningeal Worm (Parelaphostrongylus tenuis) in South Dakota
Christopher N. Jacques and Jonathan A. Jenks "Distribution of Meningeal Worm (Parelaphostrongylus tenuis) in South Dakota," Journal of Wildlife Diseases 40(1), 133-136, (1 January 2004). https://doi.org/10.7589/0090-3558-40.1.133
Received: 14 January 2003; Published: 1 January 2004
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