Hopes for a successful Covid-19 vaccine have been boosted after two leading groups achieved positive early results.
In a phase-one trial involving about 1,000 British volunteers, a University of Oxford vaccine appears to have stimulated the desired response from the immune system, The Times understands.
The subjects are understood to have shown encouraging levels of neutralising antibodies, thought to be important in protecting against viral infection, and there were no serious side-effects.
The results also indicated that another aspect of the immune system, known as T-cells, was mobilised. The researchers have yet to prove that this combined immune response is enough to protect against infection but if it had not been found it would have been a setback. “The Oxford team are very much
