Study finds deer are virus reservoirs, promoting ongoing mutation. New research has found that white-tailed deer across Ohio have been infected with the virus that causes COVID-19. Alarmingly, the results also show that viral variants evolve about three times faster in deer than in humans. Scien
detection of SARS-CoV-2 infections in white-tailed deer in nine Ohio locations in December 2021, and are continuing to monitor deer for infection by more recent variants.
Beyond the detection of active infections, researchers also found through blood samples containing antibodies – indicating previous exposure to the virus – that an estimated 23.5% of deer in Ohio had been infected at one time or another.
“There’s probably a timing component to what we found – we were near the end of a delta peak in humans, and then we see a lot of delta in deer,” Bowman said. “But we were well past the last alpha detection in humans. So the idea that deer are holding onto lineages that have since gone extinct in humans is something we were worried about.”
“Not only are deer getting infected with and maintaining SARS-CoV-2, but the rate of change is accelerated in deer – potentially away from what has infected humans,” Bowman said.
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