Johnson and Johnson vaccine: FDA finds the single-shot jab safe

Written By: BBC

A review by US regulators of the single-shot Johnson & Johnson coronavirus vaccine has found it safe and effective.

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It paves the way for it to become the third Covid-19 vaccine to be authorised in the US, possibly within days.

The vaccine would be a cost-effective alternative to the Pfizer and Moderna vaccines, and can be stored in a refrigerator instead of a freezer.

The Belgian company Janssen, which is owned by the pharmaceutical giant, said its data showed the product was highly effective against severe disease.

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It comes as Ghana became the first country to receive coronavirus vaccines through the Covax vaccine sharing initiative.

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The briefing document published by the US Food and Drug Administration(FDA) gives more detail on the data submitted by Janssen to the regulator. The FDA concludes that the Johnson & Johnson vaccine has “known benefits” in reducing both symptomatic and severe illness.

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Results from vaccine trials conducted in the US, South Africa and Brazil found its efficacy against the worst outcomes of the virus was “similarly high” but overall protection was lower in South Africa and Brazil, where virus variants have become dominant.

Data showed it was more than 85% effective at preventing serious illness, but only 66% effective overall, when moderate cases were included, when considering cases at least 28 days after vaccination.

Notably, there were no deaths among participants who had received the vaccine and no hospital admissions after 28 days post-vaccine.

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An external committee of experts will meet on Friday to recommend whether the FDA should authorise the vaccine, possibly adding to a coming surge in vaccine availability in the US.

The company says it plans to deliver 20 million doses in total by late March, in line with an agreement to supply the US with 100m doses by the end of June.

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