The study also found that the virus develops and multiplies in the respiratory tract of deer - lymphoid
Five days is a relatively short period of time during which infected animals moult and are able to transmit the virus.
Diego Diehl, director of the virology laboratory at the Animal Health Diagnostic Center
Virus replication in deer takes place in the upperrespiratory tract, especially in the turbinates. This is similar to what happens in humans and other animals susceptible to infection. The virus spreads between deer through nasal and oral secretions and droplets of saliva, similarly in humans.
The results obtained will help in futureepidemiological and immunological studies of COVID-19 in the wild. It will also help determine whether deer can act as reservoirs that support the virus in nature independently of humans. Last year, scientists tracked how the virus was repeatedly transmitted from humans to deer in several US states.
Identification of target tissues in which the virusreproduces during infection, also important for game hunters. There is currently no evidence that people contracted COVID-19 from deer, but epidemiologists still accept that the virus can be transmitted during hunting.
Deer are hunted frequently in the United States, so we need to know where the virus replicates to minimize the risks of contracting and transmitting COVID-19 back to humans.
Diego Diehl, director of the virology laboratory at the Animal Health Diagnostic Center
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