Pfizer-BioNTech potential Covid-19 vaccine shows promise in additional data

The companies said the data also demonstrated an induction of high level of T-cell response against the novel coronavirus

German biotech firm BioNTech and US drugmaker Pfizer on Monday reported additional data from their experimental Covid-19 vaccine that showed it was safe and induced an immune response in patients.

BioNtech's US shares gained 12 per cent, while Pfizer's stock rose 3.6 per cent in early trading.

The companies said the data also demonstrated an induction of high level of T-cell responses against the novel coronavirus.

More than 150 possible vaccines are being developed and tested around the world to try to stop the pandemic. There are 23 candidates in human clinical trials, including from Moderna and AstraZeneca Plc.