Serum was collected from laboratory-reared Virginia opossums (Didelphis virginiana) to determine whether experimentally infected opossums shedding Sarcocystis neurona sporocysts develop serum antibodies to S. neurona merozoite antigens. Three opossums were fed muscles from nine-banded armadillos (Dasypus novemcinctus), and 5 were fed muscles from striped skunks (Mephitis mephitis). Serum was also collected from 26 automobile-killed opossums to determine whether antibodies to S. neurona were present in these opossums. Serum was analyzed using the S. neurona direct agglutination test (SAT). The SAT was modified for use with a filter paper collection system. Antibodies to S. neurona were not detected in any of the serum samples from opossums, indicating that infection in the opossum is localized in the small intestine. Antibodies to S. neurona were detected in filter-paper– processed serum samples from 2 armadillos naturally infected with S. neurona.
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June 2006
Research Article|
June 01 2006
Lack of Sarcocystis neurona Antibody Response in Virginia Opossums (Didelphis virginiana) Fed Sarcocystis neurona–Infected Muscle Tissue
M. A. Cheadle;
M. A. Cheadle
aDepartment of Pathobiology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, 2015 SW 16th Avenue, Gainesville, Florida 32610-0880
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D. S. Lindsay;
D. S. Lindsay
bCenter for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, 1410 Prices Fork Road, Blacksburg, Virginia 24061-0342
cTo whom correspondence should be addressed. lindsayd@vt.edu
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E. C. Greiner
E. C. Greiner
aDepartment of Pathobiology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, 2015 SW 16th Avenue, Gainesville, Florida 32610-0880
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J Parasitol (2006) 92 (3): 652–654.
Citation
M. A. Cheadle, D. S. Lindsay, E. C. Greiner; Lack of Sarcocystis neurona Antibody Response in Virginia Opossums (Didelphis virginiana) Fed Sarcocystis neurona–Infected Muscle Tissue. J Parasitol 1 June 2006; 92 (3): 652–654. doi: https://doi.org/10.1645/GE-788R.1
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