German scientists say they can help improve vaccines to prevent blood clots

AstraZeneca and Johnson & Johnson jabs have caused rare blood clots but scientists say they can be redesigned to avoid problem

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A team of German scientists believe that they have worked out why some people given the AstraZeneca and Johnson & Johnson vaccines against Covid-19 develop blood clots – and claim they can tell the manufacturers how to improve the vaccine to avoid it.

The key is in the adenovirus – the common cold virus that is used to deliver the spike protein of the coronavirus into the body, say Rolf Marschalek, a professor at Goethe university in Frankfurt, and colleagues. The mRNA vaccines developed by Pfizer/BioNTech and Moderna do not use this delivery system and there have been no blood clotting cases linked to them.

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from World news | The Guardian https://ift.tt/3vrAzLc