The llama has provided nanobodies that effectively prevent infection, but the use of other species in Covid research raises troubling ethical questions

Cormac the llama lives a quiet life on a farm in Washington State, totally unaware that his unique immune system may be key to protecting the developing world from Covid-19.

“He is an extremely charismatic llama … he’s a pretty cool guy,” says TJ Esparza, a neuroscientist at the Uniformed Services University. He is part of the team attempting to transform Cormac’s nanobody cells into a drug that will coat the inside of human lungs, providing temporary but effective protection from coronavirus particles.

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Source: The Guardian