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John A. Baroch

photo of John Baroch

John A. Baroch,
Wildlife Disease Biologist

Research Program: National Wildlife Disease Program

Current Projects 

  • National avian influenza tissue archive
  • Subtypes of avian influenza in wild birds
  • Surveillance for avian bornavirus in wild birds
  • Surveillance for novel avian-swine reassortant viruses
  • National feral swine serum archive
  • Trichinella and Toxoplasma
  • Swine brucella
  • Pseudorabies in feral swine


  • Graduate Studies, Zoology, Colorado State University
  • B.S., Biology-Natural History concentration, Fort Lewis College

Contact Information 

  • Address: Wildlife Services, NWRC, 4101 LaPorte Ave, Fort Collins, CO, 80521
  • Telephone: 970-266-6308
  • Fax: 970-266-6089
  • E-mail:


Ferguson, L., K. Luo, A.K. Olivier, F.L. Cunningham, S. Blackmon, K. Hanson-Dorr, H. Sun, J. Baroch, M.W. Lutman, B. Quade, W. Epperson, R. Webby, T.J. DeLiberto, and X-F. Wan. 2018. Influenza D Virus infection in feral swine populations, United States. Emerging Infectious Diseases 24(6): 1019-1027. doi: 10.3201/eid2406.172102

Pedersen, K, T.D. Anderson, R.M. Maison, G.W. Wiscomb, M.J. Pipas, D.R. Sinnett, J.A. Baroch, and T. Gidlewski. 2018. Leptospira antibodies detected in wildlife in the USA and the US Virgin Islands. Journal of Wildlife Diseases 54(3):450-459. doi: 10.7589/2017-10-269

Martin, B.E., H. Sun, M. Carrel, F.L. Cunningham, J.A. Baroch, K.C. Hanson-Dorr, S.G. Young, B. Schmit, J.M. Nolting, K. Yoon, M.W. Lutman, K. Pedersen, K. Lager, A.S. Bowman, R.D. Slemons, D.R. Smith, T. DeLiberto, and X. Wan. 2017. Feral swine in the United States have been exposed to both avian and swine influenza A viruses. Applied and Environmental Microbiology 83:e01346-17. doi: 10.1128/AEM.01346-17 

Bailey, E., L. Long, N. Zhao, J.S. Hall, J.A. Baroch, J. Nolting, L. Senter, F.L. Cunningham, G.T. Pharr, L. Hanson, R. Slemons, T.J. DeLiberto, and X. Wan. 2016. Antigenic characterization of H3 subtypes of avian influenza A viruses from North America.Avian Diseases 60:346-353.  doi: 10.1637/11086-041015-Reg.1  

Sun, H., J. Xue, E. Bailey, Y. Xu, G. Hu, J. Baroch, Y. Zhang, L. Pace, T.J. DeLiberto, and X. Wan. 2016. A quantitative RT-PCR assay for rapid detection of Eurasian-lineage H10 subtype influenza A virus. Virologica Sinica 31(5):444-447.  doi: 10.1007/s12250-016-3826-1

Bevins, S. N., R. J. Dusek, C. L. White, T. Gidlewski, B. Bodenstein, K. G. Mansfield, P. DeBruyn, D. Kraege, E. Rowan, C. Gillin, B. Thomas, S. Chandler, J. Baroch, B. Schmit, M. J. Grady, R. S. Miller, M. L. Drew, S. Stopak, B. Zscheile, J. Bennett, J. Sengl, C. Brady, H. S. Ip, E. Spackman, M. L. Killian, M. K. Torchetti, J. M. Sleeman, and T. J. Deliberto. 2016. Widespread detection of highly pathogenic H5 influenza viruses in wild birds from the Pacific Flyway of the United States. Scientific Reports 6:28980.  doi: 10.1038/srep288980   

Xu, Y., E. Bailey, E. Spackman, T. Li, H. Wang, L-P. Long, J.A. Baroch, F.L. Cunningham, X. Lin, R.G. Jarman, T.J. DeLiberto, and X-F. Wan. 2016. Limited antigenic diversity in contemporary H7 avian-origin influenza A viruses from North America. Scientific Reports 6:20688.   doi:  10.1038/srep20688  

Sun, H., F.L. Cunningham, J. Harris, Y. Xu, L-P. Long, K. Hanson-Dorr, J.A. Baroch, P. Fioranelli, M.W. Lutman, T. Li, K. Pedersen, B.S. Schmit, J. Cooley, X. Lin,  R.G. Jarman, T.J. Deliberto, X-F. Wan. 2015. Dynamics of virus shedding and antibody responses in influenza A virus-infected feral swine. Journal of General Virology 96(9):2569-2578.  doi:10.1099/jgv.0.000225

Guo, J., I. Tizard, J. Baroch, H.L. Shivaprasad, and S.L. Payne. 2015. Avian Bornaviruses in North American gulls. Journal of Wildlife Diseases 15(3):754-758.  doi: 10.7589/2015-01-001

Baroch, J.A., C.A. Gagnon, S. Lacouture, and M.Gottschalk. 2015. Exposure of feral swine (Sus scrofa) in the United States to selected pathogens. The Canadian Journal of Veterinary Research 79(1):74-78.

Hill, D.E., J.P. Dubey, J.A. Baroch, S.R. Swafford, V.F. Fournet, D. Hawkins-Cooper, D.G. Pyburn, B.S. Schmit, H.R. Gamble, K. Pedersen, L.R. Ferreira, S.K. Verma, Y.Ying, O.C.H. Kwok, H. Feidas, and G. Theodoropoulos. 2014. Surveillance of feral swine for Trichinella spp. and Toxoplasma gondii in the USA and host-related factors associated with infection. Veterinary Parasitology 205:653-665. doi: 10.1016/j.vetpar.2014.07.026.

Burnham, K.K., D.R. Sinnett, J.A. Johnson, J.L. Burnham, J.A. Baroch, and B.W. Konkel. 2014. New species records and changes in abundance of waterfowl in northwest Greenland. Polar Biology 37(9):1289-1300.  doi:10.1007/s00300-014-1520-z.

Bevins, S.N., K. Pedersen, M.W. Lutman, J.A. Baroch, B.S. Schmit, D. Kohler, T. Gidlewski, D.L. Nolte, S.R. Swafford, and T.J. DeLiberto. 2014. Large-scale Avian Influenza surveillance in wild birds throughout the United States . PLoSOne 9(8): e104360. doi: 10.1371/journal.pone.0104360.

Scotch, M., Lam, T.T-Y., K.L. Pabilonia, T. Anderson, J. Baroch, D. Kohler, and T.J. DeLiberto. 2014. Diffusion of influenza viruses among migratory birds with a focus on the Southwest United States . Infection, Genetics and Evolution 26:185-193. doi: 10.1016/j.meegid.2014.05.029.

Feng, Z., J.A. Baroch, L.-P. Long, Y. Xu., F.L. Cunningham, K. Pedersen, M.W. Lutman, B.S. Schmit, A.S. Bowman, T.J. DeLiberto, and X.-F. Wan. 2014. Influenza A Subtype H3 viruses in feral swine, United States, 2011-2012. Emerging Infectious Diseases 20(5): 843-846. doi: 10.3201/eid2005.131578.

Pedersen, K. S.N. Bevins, J.A. Baroch, J.C. Cumbee, Jr., S.C. Chandler, B.S. Woodruff, T.T. Bigelow, and T.J. DeLiberto. 2013. Pseudorabies in feral swine in the United States, 2009-2012. Journal of Wildlife Diseases 49(3): 709-713.

Bevins, S.N., J.A. Baroch, D.L. Nolte, M. Zhang, and H. He. 2012. Yersinia pestis: examining wildlife plague surveillance in China and the USA. Integrative Zoology 7: 99-109.

Hjulsager C.K., S.Ø. Breum, R. Trebbien, K.J. Handberg, Therkildsen, Roland Ole, J.J. Madsen, K. Thorup, J.A.Baroch, T.J. DeLiberto, L.E. Larsen, and P.H. Jorgensen. 2012. Surveillance for avian influenza viruses in wild birds in Denmark and Greenland, 2007-10. Avian Diseases 56 (4): 992-998.

Payne, S, L Covaleda, G Jianhua, S Swafford, J Baroch, PJ Ferro, B Lupiana, J Heatley, and I Tizard. 2011. Detection and characterization of a distinct bornavirus lineage from healthy Canada geese (Branta Canadensis). Journal of Virology 85:12053-12056.

DeLiberto, TJ, SR Swafford, DL Nolte, K Pedersen, MW Lutman, BB Schmit, JA Baroch, DJ Kohler, and A Franklin. 2009. Surveillance for highly pathogenic avian influenza in wild birds in the USA. Integrative Zoology 4:426-439.
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