Erna van Wilpe

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Infection with Sarcocystis is common in many species of wild cervids but none is reported from the black-tailed deer (Odocoileus hemionus columbianus). Here, we report Sarcocystis infection in two black-tailed deer from northwest USA for the first time. Sarcocysts were microscopic, up to 556 μm long and mature. The sarcocyst wall was up to 1.39 μm thick and(More)
Numerous species of Sarcocystis have been reported from wild ruminants, but none has been named from the Rocky Mountain goat (Oreamnos americanus). Mature sarcocysts were found in frozen muscle samples of three of seven mountain goats from Alaska, USA. Two morphological types of sarcocysts were found; one had Sarcocystis cornagliai-like sarcocysts,(More)
1 United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA 2 Department of Anatomy and Physiology, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa 3 Alaska Department of Fish and Game, Division(More)
Cattle (Bos taurus) are intermediate hosts for four species of Sarcocystis, namely Sarcocystis cruzi, Sarcocystis hirsuta, Sarcocystis hominis, and Sarcocystis rommeli. Of these four species, mature sarcocysts of S. cruzi are thin-walled (<1 μm), whereas S. hirsuta, S. hominis, and S. rommeli have thick walls (4 μm or more). Here, we describe a new species(More)
This group of conditions is characterised by selective non-inflammatory, neuronal degeneration involving either neurons in their entirety (neuronopathies) or axons in a more restricted manner (axonopathies). Division between these two categories may be difficult purely on morphological grounds as the axon is a dependant part of the neuron [1]. Jubb &(More)
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