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Data Reveals Oxford AstraZeneca Vaccine has 90% Efficiency


The coronavirus vaccine of Oxford University and AstraZeneca in UK marked as the 90% efficient vaccine -- can protect 70.4% of people from becoming ill and – in a surprise result – up to 90% if a lower first dose is used, results from the final trial show. 

The large trial shows the coronavirus vaccine developed by the University of Oxford is highly effective to prevent people from showing Covid symptoms. The vaccine has some big advantages, because it is fridge-stable so easily transported and used anywhere in the world. It is also substantially cheaper, at about £3 a dose instead of more than £20 for the others.

The Oxford vaccine is the third to produce efficacy results, after Pfizer/BioNTech and Moderna whose vaccines were made with a different technology. Both of those reported almost 95% efficacy and Pfizer has applied for a license in the US and UK.

"The announcement today takes us another step closer to the time when we can use vaccines to bring an end to the devastation caused by [the virus]," said the vaccine's architect, Prof Sarah Gilbert.

The UK government has pre-ordered 100 million doses of the Oxford vaccine, and AstraZeneca says it will make three billion doses for the world next year.

Prime Minister Boris Johnson said it was "incredibly exciting news" and that while there were still safety checks to come, "these are fantastic results".

In the UK there are four million doses of the Oxford vaccine ready to go. But nothing can happen until the vaccine has been approved by regulators who will assess the vaccine's safety, effectiveness, and that it is manufactured to high standard. This process will happen in the coming weeks.


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