While the global pharmaceutical industry has been trying for months to develop a vaccine against Covid-19, Sweden has chosen the path of treatment.

At the Karolinska Institute, the country's most prestigious medical research center, Dr Gerald McInerney is working on a drug against Covid-19 that could take the form of an inhaler.

>> To see: Covid-19: is the Swedish model effective?

The research team found that the alpaca produced antibodies against the coronavirus on its own.

"These antibodies that we have discovered attach to the virus very strongly and block the infection. So we are very happy to have found something very effective," says Dr McInerney.

These antibodies can be cloned in the laboratory in large quantities from an alpaca blood sample.

It remains to manage to transfer them to humans and see their effectiveness.

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