Thromboembolic events with concurrent low platelets. Up to 14th April 2021 the MHRA had received Yellow Card reports of 168 cases of major thromboembolic events (blood clots) with concurrent thrombocytopenia (low platelet counts) in the UK following vaccination with Covid-19 vaccine AstraZeneca. These events occurred in 93 women and 75 men aged from 18 to 93 years and the overall case fatality rate was 19% with 32 deaths. The estimated number of first doses of Covid-19 vaccine AstraZeneca administered in the UK by 14th April was 21.2 million giving an overall case incidence of 7.9 per million doses. The data...
