Pfizer and BioNTech have issued a press release, announcing that their vaccine candidate is more than 90% effective in preventing COVID-19. The results are based on initial data from a large study of 43,538 participants, including 94 confirmed cases of COVID-19.

Professor Raina MacIntyre is Head of the Biosecurity Program at the Kirby Institute at the University of NSW. An expert in influenza and emerging infectious diseases, Professor MacIntyre said that the data needs to be seen in a peer-reviewed publication to fully evaluate it. Read more