Scientists have found that people who have not been vaccinated against Covid-19, but who have survived the infection, have a stronger shield against the Delta variant.

This despite the Pfizer-BioNTech Covid-19 vaccine having been touted as the strongest defence against the dominant variant of the coronavirus.

So what does this say about our immune systems and its ability to combat Covid-19?

Guests:

• Professor Bertram Fielding – Research Development Director, Molecular Biology and Virology Research Lab, University of Western Cape(UWC)
• Professor Ameena Goga – Director of the HIV Prevention Research Unit, South African Medical Research Council (MRC)