Location: Infectious Bacterial Diseases ResearchTitle: Susceptibility of white-tailed deer (Odocoileus virginianus) to SARS-CoV-2
|MARTINS, MATHIAS - Cornell University - New York|
|CASERTA, LEONARDO - Cornell University - New York|
|MITCHELL, PATRICK - Cornell University - New York|
|WAGNER, BETTINA - Cornell University - New York|
|DIEL, DIEGO - Cornell University - New York|
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/10/2021
Publication Date: 3/10/2021
Citation: Palmer, M.V., Martins, M., Falkenberg, S.M., Devries, A.C., Caserta, L.D., Mitchell, P.K., Wagner, B., Cassmann, E.D., Lager, K.M., Diel, D.G. 2021. Susceptibility of white-tailed deer (Odocoileus virginianus) to SARS-CoV-2. Virtual. 86th North American Wildlife and Natural Resources Conference.
Technical Abstract: The origin of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus causing the global coronavirus disease 19 (COVID-19) pandemic, remains a mystery. Understanding the host range and identifying animal species that are susceptible to SARS-CoV-2 infection may help elucidate the origin of the virus and the mechanisms underlying cross-species transmission to humans. Here we showed that white-tailed deer (Odocoileus virginianus), an animal species in which the angiotensin converting enzyme 2 (ACE2) – the SARS-CoV-2 receptor – shares a high degree of similarity to humans, are highly susceptible to infection. Intranasal inoculation of deer fawns with SARS-CoV-2 resulted in established subclinical viral infection and shedding of infectious virus in nasal secretions. Notably, infected animals transmitted the virus to non-inoculated contact deer. Viral RNA was detected in multiple tissues 21 days post inoculation. All inoculated and contact animals seroconverted and developed neutralizing antibodies as early as day 7 post inoculation. Whole genome sequence analysis of SARS-CoV-2 shed in nasal secretions of inoculated and contact animals revealed genomic changes suggestive of virus adaptation over time. The work provides important insights into the animal host range of SARS-CoV-2, and identifies white-tailed deer as a susceptible wild animal species to the virus.