On Saturday a scientist advising the Government said any blot clots associated with the J&J vaccine are “extraordinarily rare events”.
Professor Peter Openshaw, a member of the Covid-19 clinical information network, told BBC Radio 4’s Today programme: “We still don’t know whether they are directly related and caused by the vaccine but it seems possible that they could be.
“It wouldn’t be surprising to find the J&J, the Janssen vaccine, also causes rare blood clots because it’s based on an adenovirus technology which is not that far away from the technology being used in the AstraZeneca vaccine.”
Asked if he is concerned it could undermine public confidence in coronavirus jabs, Prof Openshaw said: “These are extraordinarily rare events and there is no medicine that is going to be completely free of side effects but this is on the scale of the risk of adverse outcome you would expect if you get into a car and drive 250 miles, and many of us wouldn’t blink before taking that risk.”