Researchers say they have made a "promising" breakthrough as they are developing a "holy grail" vaccine that can protect against multiple Covid variants.
Scientists at the Francis Crick Institute believe they found a genetic feature of the Covid-19 virus that appeared "similar" to a number of coronaviruses that are less prone to mutations.
The findings were published in Science Translational Medicine and looked at if antibodies that are trained to target earlier variants can also neutralise other strains of Covid-19.
