Video Duration 02 minutes 43 seconds

New COVID-19 vaccine trials under way in Brazil

Oxford and a Chinese-made coronavirus vaccine are being trialled in Brazil.

Nearly two dozen potential vaccines for the novel coronavirus are under various stages of human testing worldwide, and at least two are being conducted in Brazil – the country with the world’s second-worst outbreak.

One is a Chinese-made drug that is being tested on 9,000 volunteers, the other is developed by Oxford University.

Testing is now under way and is expected to last for about three months.

Al Jazeera’s Teresa Bo reports.