In late summer, as researchers accelerated the first clinical trials of COVID-19 vaccines for humans, a group of scientists in Colorado worked to inoculate a far more fragile species. About 120 black-footed ferrets, among the most endangered mammals in North America, were injected with an experimental COVID vaccine aimed at protecting the small, weasel-like creatures rescued from the brink of extinction four decades ago. It's not just humans that matter!
Photo Credit: Yulia Vambold
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