Experts at King s College London and health-tech firm ZOE estimate that 2,550 Britons were becoming ill every day on May 23. For comparison, the figure a week before stood at 2,750.
A team of German researchers has suggested a mechanism behind rare but serious clotting events in recipients of COVID-19 vaccines developed by AstraZeneca and Johnson & Johnson.
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A vial of the AstraZeneca Covid-19 jab (FADEL SENNA/AFP via Getty Images)
Scientists in Germany believe they have found the cause of the rare blood clots linked to the Oxford/AstraZeneca and Johnson & Johnson coronavirus vaccines.
If borne out, the findings could lead to the jabs being altered in order to prevent the reaction.
The researchers, in a study which is yet to be reviewed by experts, said Covid-19 vaccines that employ adenovirus vectors - cold viruses used to deliver vaccine material - send some of their payload into the nucleus of cells, where some of the instructions for making coronavirus proteins could be misread, with the resulting proteins potentially triggering blood clot disorders in a small number of recipients.