The latest developments in the multiple candidates for a COVID-19 vaccine, with the University of Otago's Professor David Murdoch, a clinical microbiologist who's consulted for the WHO and the Health's Ministry Covid-19 Technical Advisory Group.
He's also been formally supporting the Oxford University COVID-19 vaccine development effort.
This follows promising results from two different vaccines ( one from Pfizer, the other Moderna) in as many weeks, which were both found to be highly effective in late stage trials.