vaccine that goes beyond Covid-19 to fight related diseases such as Middle East respiratory syndrome, or MERS.More than 30 Covid vaccines are in clinical trials, with at least 140 more at the preclinical stage, according to the World Health Organization.
Frontrunners include the University of Oxford, working with AstraZeneca Plc, and Moderna Inc.The pandemic has spurred the development of a wave of new approaches to vaccine-making, with a race to see which modality will be the first and most successful.
A handful of DNA-based vaccines are being tested, including one from Inovio Pharmaceuticals Inc. The company said an early trial showed positive immune responses, but investors complained about a lack of detail.The Cambridge team’s shot uses.