Promising preliminary results from a major Covid-19 trial suggest that a jab to protect people from the virus could be on the horizon.
Early analysis from Pfizer and BioNTech, the pharmaceutical giants behind the research has shown it is more than 90% effective in preventing the disease.
The vaccine has been tested on more than 40,000 volunteers and interim results published today prove it is 90 per cent effective at protecting people against the virus.
And while it's early days and t here's no guarantee it will be the key to help eradicate coronavirus, it's being heralded as a "scientific breakthrough" and a step towards a working jab.
Officials have warned that although the results are promising, more still needs to be done before it becomes available - and it needs to be cleared for use by the independent regulator.
But should the vaccine pass rigorous safety checks, a UK-wide NHS led programme of distribution would begin, the Prime Minister has confirmed, with hopes the first doses potentially available by Christmas.
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The UK has already secured around 30 million doses of the new Pfizer/BioNTech vaccine – the first agreement the firms signed with any government.
People will need two doses of the vaccine, meaning not enough shots have been secured for the entire UK population.
However guidelines based on risk factor have already been issued on who will be first in line to receive it should it become available, with elderly and vulnerable groups taking priority.