Education and/or Training

B.S.	1999	University of Wisconsin - Madison	Molecular Biology
Ph.D.	2007	University of Wisconsin - Madison	Cellular & Molecular Biology

Areas of Specialization and or Research Interests

Molecular Biology
Virology
Transmissible Spongiform Encephalopathies
Zoonotic Disease
Environmental persistence of disease agents

Current USGS Research and Projects

Environmental persistence of chronic wasting disease agent
Strain-identification assay for chronic wasting disease in cervids

Professional Experience

2007 – Present	Post-doctoral researcher, Montana State University, National Wildlife Health Center
2001 – 2007	Graduate Research Assistant, Program in Cellular & Molecular Biology, UW-Madison
1999 – 2001	Research Specialist, UW-Madison Veterinary School

Professional Activities and/or Memberships

Board Member, UW Synchrotron Radiation Center User Advisory Board, 2005 - Stoughton, WI

Honors and/or Awards

Invited Speaker	2005	Synchrotron Radiation Center 38th User's Meeting	Stoughton, WI
Invited Speaker	2005	2nd International Chronic Wasting Disease Symposium	Madison, WI
Graduate Student Mentor Award	2003	UW - Madison Graduate School	Madison, WI
Invited Speaker	2000	6th International Endotoxin Society Conference	Institut Pasteur, Paris, France

Selected Publications

Hinckley, G.T., Johnson, C.J., Jacobson, K.H., Bartholomay, C., McMahon, K.D., McKenzie, D., Aiken, J.M. and Pedersen, J.A.Persistence of Pathogenic Prion Protein during Simulated Wastewater Treatment Processes. Environ. Sci. Technol. 2008. In Press.

Johnson, C.J., Pedersen, J.A., Chappell, R.J., McKenzie, D. and Aiken, J.M. Oral Transmissibility of Prion Disease is Enhanced by Binding to Soil Particles. PLoS Pathog. 4, e93. 2007.

Metzler, R.A., Abrecht, M., Olabisi, R.M., Ariosa, D., Johnson, C.J., Frazer, B.H., Coppersmith, S.N. and Gilbert, P.U.P.A. Columnar Nacre Architecture and Possible Formation Mechanism. Phys. Rev. Lett. 98, 268102. 2007.

Johnson, C.J., Phillips, K.E., Schramm, P.T., McKenzie, D., Aiken, J.M. and Pedersen, J.A. Prions Adhere to Soil Minerals and Remain Infectious. PLoS Pathog. 2, e32. 2006.

Schramm, P.T., Johnson, C.J., McKenzie, D., Aiken, J.M. and Pedersen, J.A. Potential Role of Soil in the Transmission of Prion Disease. Rev. Mineral. Geochem. 64, 135-152.2006.

Hoefert, V.B., Aiken, J.M., McKenzie, D. and Johnson, C.J. Labeling of the Scrapie-associated Prion Protein in vitro and in vivo. Neurosci. Lett. 2-3, 176-180.2004.