Cows ‘could be the newest weapon against Covid-19’

Genetically modified cows are currently being used by an American biotech firm to produce human antibodies that subdue SARS-CoV-2, the pathogen causing Covid-19 – with plans to start clinical trials this summer.

SAB Biotherapeutics, a US firm based in Sioux Falls, South Dakota, genetically alters dairy cows so that certain immune cells carry the DNA that allows people to make antibodies.

That modification “enables the animals to manufacture large quantities of human antibodies against a pathogen protein injected into them”, the company claims.

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