David Needle

David Needle

Senior Veterinary Pathologist
Pathology Section Chief
Phone: (603) 862-2726
Office: Molecular, Cellular, & Biomedical Sciences, Veterinary Diagnostic Lab, Durham, NH 03824

I received a DVM from the Cummings School of Veterinary Medicine at Tufts University in 2011, after which I completed a 3 years residency in Veterinary Anatomic Pathology at the Diagnostic Center for Population and Animal Health at Michigan State University, and one year of post-doctoral work in microbial pathogenesis.

I joined the New Hampshire Veterinary Diagnostic Laboratory (NHVDL) and UNH in 2015. My clinical work consists of diagnostic and investigational pathology serving primary care veterinarians, livestock producers, zoological collections, researchers, wildlife agencies, and rehabilitators. My research is currently comprised of two main foci in the broader context of One Health: (1) emerging and zoonotic wildlife disease discovery, and (2) comparative microbial genomics. Both areas of research have their basis in observations from diagnostic and research submissions to the NHVDL sections of pathology and microbiology. Active research in both areas relies on collaboration with multiple researchers and diagnosticians regionally and nationally.

Courses Taught

  • BMS 704: Pathologic Basis of Disease
  • BMS 712: Experience in Vet DIagnostics
  • BMS 795W: Investigations Biomedical Sci
  • BMS 799H: Senior Honors Thesis


  • D.V.M., Tufts University
  • B.A., Tufts University

Research Interests

  • Animal Diseases/Pathology
  • Antibacterial Resistance
  • Emerging Diseases
  • Infectious Diseases/Agents
  • Microbiology
  • Veterinary Medicine
  • Wildlife
  • Zoonotic Diseases

Selected Publications

  • Needle, D. B., Marr, J. L., Park, C. J., Andam, C. P., Wise, A. G., Maes, R. K., . . . Gibson, R. (2020). Concurrent Infection of Skunk Adenovirus-1, Listeria monocytogenes, and a Regionally Specific Clade of Canine Distemper Virus in One Gray Fox (Urocyon cinereoargenteus) and Concurrent Listeriosis and Canine Distemper in a Second Gray Fox. PATHOGENS, 9(7). doi:10.3390/pathogens9070591

  • Smith, J. T., Amador, S., McGonagle, C. J., Needle, D., Gibson, R., & Andam, C. P. (2020). Population genomics of Staphylococcus pseudintermedius in companion animals in the United States. COMMUNICATIONS BIOLOGY, 3(1). doi:10.1038/s42003-020-1009-y

  • Needle, D. B., Gibson, R., Hollingshead, N. A., Sidor, I. F., Marra, N. J., Rothenheber, D., . . . Goodman, L. B. (2019). Atypical Dermatophytosis in 12 North American Porcupines (Erethizon dorsatum) from the Northeastern United States 2010-2017. PATHOGENS, 8(4). doi:10.3390/pathogens8040171

  • Needle, D. B., Wise, A. G., Gregory, C. R., Maes, R. K., Sidor, I. F., Ritchie, B. W., & Agnew, D. (2019). Necrotizing Ventriculitis in Fledgling Chimney Swifts (Chaetura Pelagica) Associated With a Novel Adenovirus, Chimney Swift Adenovirus-1 (CsAdV-1). VETERINARY PATHOLOGY, 56(6), 907-914. doi:10.1177/0300985819861717

  • Needle, D. B., Burnell, V. C., Forzan, M. J., Dubovi, E. J., Schuler, K. L., Bernier, C., . . . Wilkes, R. P. (2019). Infection of eight mesocarnivores in New Hampshire and Vermont with a distinct clade of canine distemper virus in 2016-2017. JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION, 31(4), 562-567. doi:10.1177/1040638719847510

  • Hendrikse, L. D., Kambli, A., Kayko, C., Canuti, M., Rodrigues, B., Stevens, B., . . . Troyer, R. M. (2019). Identification of a Novel Gammaherpesvirus in Canada lynx (Lynx canadensis). VIRUSES-BASEL, 11(4). doi:10.3390/v11040363

  • Needle, D. B., Selig, M. K., Jackson, K. A., Delwart, E., Tighe, E., Leib, S. L., . . . Pesavento, P. A. (2019). Fatal bronchopneumonia caused by skunk adenovirus 1 in an African pygmy hedgehog. JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION, 31(1), 103-106. doi:10.1177/1040638718812123

  • Zoll, W. M., Needle, D. B., French, S. J., Lim, A., Bolin, S., Langohr, I., & Agnew, D. (2015). Sarcocystis spp. Infection in two Red Panda Cubs (Ailurus fulgens). JOURNAL OF COMPARATIVE PATHOLOGY, 153(2-3), 185-189. doi:10.1016/j.jcpa.2015.04.009