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United States Department of Agriculture

Agricultural Research Service

Related Topics

Allyn Spear
National Animal Disease Center
Research Molecular Biologist

Phone: (515) 337-6416
Fax: (515) 337-7402
P.O. BOX 70
1920 DAYTON AVE
AMES, IA, 50010


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Occurrence, sequence polymorphism and population structure of Circulifer tenellus virus 1 in a field population of the beet leafhopper - (Peer Reviewed Journal)
Spear, A., Yokomi, R.K., French, R.C., Stenger, D.C. 2013. Occurrence, sequence polymorphism and population structure of Circulifer tenellus virus 1 in a field population of the beet leafhopper. Virus Research. 176:307-311.
The use of epitope tags in modified porcine respiratory and reproductive syndrome virus vaccines to differentiate infected from vaccinated animals - (Abstract Only)
Spear, A.R., Lager, K.M., Faaberg, K.S. 2013. The use of epitope tags in modified porcine respiratory and reproductive syndrome virus vaccines to differentiate infected from vaccinated animals. Positive Strand RNA Viruses, Keystone Symposia on Molecular and Cellular Biology. Paper No. 2079, p. 94.
Cells derived from the glassy-winged sharpshooter, Homalodisca vitripennis, support infection and replication of viral RNA from a clone of Homalodisca coagulata virus 1 (HoCV-1). - (Abstract Only) - (19-Oct-12)
Pathogenesis of HP-PRRSV in gnotobiotic pigs - (Abstract Only)
Lager, K.M., Faaberg, K.S., Brockmeier, S.L., Miller, L.C., Kappes, M.A., Spear, A., Kehrli, Jr., M.E. 2012. Pathogenesis of HP-PRRSV in gnotobiotic pigs. 2012 International PRRS Symposium. p. 92.
Changes in circulating and thymic lymphocyte populations following infection with strains of North American or highly pathogenic PRRSV - (Abstract Only)
Loving, C.L., Brockmeier, S.L., Palmer, M.V., Spear, A.R., Faaberg, K.S., Nicholson, T.L. 2012. Changes in circulating and thymic lymphocyte populations following infection with strains of North American or highly pathogenic PRRSV. International PRRS Symposium 2012. Poster No. 77.
Comparison of the pathogenesis of Asian highly-pathogenic PRRSV isolates to U.S. isolates and their ability to cause secondary bacterial infection in swine - (Abstract Only)
Brockmeier, S.L., Loving, C.L., Palmer, M.V., Spear, A.R., Faaberg, K.S., Nicholson, T.L. 2012. Comparison of the pathogenesis of Asian highly-pathogenic PRRSV isolates to U.S. isolates and their ability to cause secondary bacterial infection in swine. International PRRS Symposium 2012. Poster No. 64.
Changes in circulating and thymic lymphocyte populations following infection with strains of North American or highly pathogenic PRRSV - (Abstract Only)
Loving, C.L., Brockmeier, S.L., Palmer, M.V., Spear, A.R., Faaberg, K.S., Nicholson, T.L. 2012. Changes in circulating and thymic lymphocyte populations following infection with strains of North American or highly pathogenic PRRSV. Conference of Research Workers in Animal Diseases Annual Meeting. Paper No. 185.
Comparison of Asian highly-pathogenic PRRSV isolates to US isolates for their ability to cause secondary bacterial infection in swine - (Abstract Only)
Brockmeier, S.L., Loving, C.L., Palmer, M.V., Spear, A.R., Faaberg, K.S., Nicholson, T.L. 2012. Comparison of Asian highly-pathogenic PRRSV isolates to US isolates for their ability to cause secondary bacterial infection in swine. Conference of Research Workers in Animal Diseases. Paper No. 184.
Reovirus genomes from plant-feeding insects represent a newly discovered lineage within the family Reoviridae - (Peer Reviewed Journal)
Spear, A., Sisterson, M.S., Stenger, D.C. 2012. Reovirus genomes from plant-feeding insects represent a newly discovered lineage within the family Reoviridae. Virus Research. 163:503-511.
Spissistilus festinus reovirus: a novel, unassigned species of the family Reoviridae infecting the three-cornered alfalfa hopper - (Abstract Only)
Spear, A., Sisterson, M.S., Stenger, D.C. 2011. Spissistilus festinus reovirus: a novel, unassigned species of the family Reoviridae infecting the three-cornered alfalfa hopper [abstract]. American Society for Virology Meeting. p.334.
Plant-feeding insects harbor double-stranded RNA viruses encoding a novel proline-alanine rich protein and a polymerase distantly related to that of fungal viruses - (Peer Reviewed Journal)
Spear, A., Sisterson, M.S., Yokomi, R.K., Stenger, D.C. 2010. Plant-feeding insects harbor double-stranded RNA viruses encoding a novel proline-alanine rich protein and a polymerase distantly related to that of fungal viruses. Virology. 404:304-311.
Novel double-stranded RNA viruses of plant-feeding insects encode a serine-alanine-proline rich protein and a polymerase distantly related to fungal viruses - (Abstract Only)
Spear, A., Sisterson, M.S., Yokomi, R.K., Stenger, D.C. 2010. Novel double-stranded RNA viruses of plant-feeding insects encode a serine-alanine-proline rich protein and a polymerase distantly related to fungal viruses. American Society for Virology Meeting Scientific Program. P.79.
Last Modified: 4/23/2014
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