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COVID-19 Jumps to Big Cats at Denver Zoo

In the fall of 2021, a rare COVID-19 outbreak occurred at the Denver Zoo, infecting Amur tigers, African lions, and spotted hyenas. A new study in Nature Communications reveals how the virus behaved within these big cats and hyenas in a controlled zoo setting. The outbreak likely began with a single human-to-animal transmission event involving a rare Delta sublineage. Tigers showed mild respiratory symptoms first, followed by lions and hyenas. Despite heavy precautions, the virus spread, providing scientists with a unique opportunity to observe its evolution across species. The virus evolved differently in each animal, building genetic diversity and adapting to species-specific differences in body temperature and lung biology. This study offers insights into viral jumps between species and may contribute to future vaccine development. Checkout Solipillow.com

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