What is more, they note that for most people the risk posed by Covid is much greater than the chance of serious harm from a Covid jab, and that Covid itself can cause dangerous blood clots. However, cases remain very rare: the MHRA noted 79 cases of blood clots with low platelets, including 19 deaths, following more than 20m doses of the AstraZeneca jab, with 44 of the cases and 14 of the deaths related to a rare type of blood clot in the brain called cerebral venous sinus thrombosis (CVST) that occurred with a low platelet count.Įxperts have stressed the rarity of such cases estimating they may occur in about one in 100,000 young adults who get the jab – a risk lower than the chance of dying in a road accident in a year. Based on the currently available evidence, specific risk factors have not been confirmed,” the EMA said. “So far, most of the cases reported have occurred in women under 60 years of age within two weeks of vaccination. Are blood clots a side-effect of the vaccines?Ĭoncerns have been raised about a particular situation whereby certain blood clots have occurred together with low levels of platelets – tiny cells in the blood that help it to clot.Įarlier this month the MHRA said that while not yet proved, there was growing evidence to suggest this syndrome could be caused by the AstraZeneca jab, while the European Medicines Agency said there was a possible link and noted the syndrome should be listed as a very rare side-effect of the vaccine.
Early reports that some people had severe allergic reactions, particularly to the Pfizer jab, led the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) to offer new recommendations, including that anyone receiving the Pfizer jab be monitored for 15 minutes after the event.
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