Jack Gelb, Jr., Ph.D.


  • Infectious Bronchitis Virus, Avian Influenza Virus, Newcastle Disease Virus
Recent Publications

Gelb J., Jr., D. J. Jackwood, E. Mundt, C. R. Pope, R. Hein, G. Slacum, J. M. Harris, B. S. Ladman, P. Lynch, D. A. Bautista, J. M. Ruano, and M. M. Troeber. Characterization of infectious bursal disease viruses isolated in 2007 from Delmarva commercial broiler chickens. Submitted.

Ladman, B. S., Spackman, E., Gelb,J., Jr.  Comparison of pooling eleven or five oropharyngeal swabbings for detecting avian influenza virus by real-time RT-PCR in broiler chickens.  Submitted.

Ladman, B. S., C. P. Driscoll, C. R. Pope, R. D. Slemons, and J. Gelb Jr. Potential of low pathogenicity avian influenza viruses of wild bird origin to establish experimental infections in turkeys and chickens.  Avian Diseases 54:1091–1094. 2010.

Spackman, Erica, Jack Gelb, Lauren Preskenis, Brian Ladman, Conrad Pope, Mary Pantin-Jackwood, and Enid McKinley. The pathogenesis of low pathogenicity H7 avian influenza viruses in chickens, ducks and turkeys. Virology Journal 7:331 doi:10

.1186/1743-422X-7-331. 2010.

Ammayappan, A., C. Upadhyay, J. Gelb, Jr., and V. N. Vakharia. Identification of sequence changes responsible for the attenuation of avian infectious bronchitis virus strain Arkansas DPI. Archives in Virology 154:495-499. 2009.

Wood, M. K., B. S. Ladman, L. A. Preskenis, C. R. Pope, D. A. Bautista, and J. Gelb, Jr. Massachusetts live vaccination protects against a novel S1 genotype infectious bronchitis virus DMV/5642/06. Avian Diseases 53:119-123. 2009.

Ladman, B. S., S. C. Rosenberger, J. K. Rosenberger, C. R. Pope, and J. Gelb, Jr. Virulence of low pathogenicity H7N2 avian influenza viruses from the Delmarva peninsula for broiler and leghorn chickens and turkeys.  Avian Diseases 52:623-631. 2008.

Gelb, J., Jr. and M. W. Jackwood.  Infectious bronchitis.  In: A Laboratory Manual for the Isolation, Identification, and Characterization of Avian Pathogens. L. Dufour-Zavala, D. E. Swayne, J. R. Glisson, J. E. Pearson, W. M. Reed, M. W. Jackwood, and P. R. Woolcock, eds. 5th edition.  2008.

Gelb, J., Jr. Avian infectious bronchitis. In: OIE Manual of Diagnostic Tests and Vaccines for Terrestrial Animals; 6th ed. World Organization for Animal Health. pp. 443-455.  2008.

Cavanagh, D., and J. Gelb, Jr. Infectious bronchitis. In: Diseases of Poultry, 12th ed. Y. M. Saif,  A. M. Fadly, J. R. Glisson, L. R. McDougald, L. K. Nolan, and D. E. Swayne, eds. Iowa State Univ. Press, Ames, Iowa. pp 117-135.  2008.

Ammayappan, A., C. Upadhyay, J. Gelb, Jr., and V. N. Vakharia. Complete genomic sequence analysis of infectious bronchitis virus Ark DPI strain and its evolution by recombination. Virology Journal 5:157. 2008.

Gelb, J., Jr., B. S. Ladman, M. J. Licata, M. H. Shapiro, and L. R. Campion. Evaluating Viral Interference between Infectious Bronchitis Virus and Newcastle Disease Virus Vaccine Strains Using Quantitative Reverse Transcription Polymerase Chain Reaction. Avian Diseases.  Avian Diseases. 51:924-934. 2007

Ladman, Brian S., Alison B. Loupos, and Jack Gelb, Jr. Infectious Bronchitis Virus S1 Gene Sequence Comparison is a Better Predictor of Challenge of Immunity in Chickens than Serotyping by Virus Neutralization.  Avian Pathology 35:127-33. 2006


Contact Information
Jack Gelb, Jr., Ph.D.
Department Chair
Avian Virology

Animal and Food Sciences
044 Townsend Hall

Newark, DE 19716
Phone: (302) 831-2524
Fax number: (302) 831-2822
Email: jgelb@udel.edu