You are assuming that it was humans that infected the deer, while it could have easily been another wild animal.
Wild animals are not commonly tested for covid-19, but those that have been have seen widespread infection. ...which means most populations of mammals and possibly birds are infected as well.
...so the deer could have caught it from any number of other animals in the wild - or more likely, from their droppings.
Wild animals are not commonly tested for covid-19, but those that have been have seen widespread infection. ...which means most populations of mammals and possibly birds are infected as well.
...so the deer could have caught it from any number of other animals in the wild - or more likely, from their droppings.