As scientists rush to find a way to tackle COVID-19, some think an old and widely used vaccine for tuberculosis could be an answer. The BCG vaccine is still routinely given in many countries, and there’s evidence that it might protect against the novel coronavirus. We speak with scientists in South Africa, the U.S. and Canada on the latest research.

In this episode:

Dr. Nokawanda Sithole from Tygerberg Hospital in Cape Town, South Africa; Dr. Gonzalo Otazu from the New York Institute of Technology College of Osteopathic Medicine; Dr. Madhu Pai from McGill University in Montreal, Canada; and Professor Andreas Diacon, from TASK in Cape Town, South Africa.

For more:

Where does the world stand on a coronavirus vaccine?

Scientists search for effective COVID-19 treatments

Doctor's Note: Why will it take so long for a COVID-19 vaccine?

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