To ask the Secretary of State for Health and Social Care, what proportion of covid-19 vaccines administered to date were manufactured by Oxford Astra Zeneca; and what information his Department holds on the number of people who have received that vaccine who have since reported serious blood clotting.
This answer is the replacement for a previous holding answer.
30 March 2021
As of 14 March, an estimated 13.7 million doses of the Oxford /AstraZeneca vaccine have been administered. As of the same date, the Medicines and Healthcare products Regulatory Agency (MHRA) has received 187 reports of blood clots reported in temporal association with the vaccine.
Such reports are not proven side effects of the vaccine. Blood clots can occur naturally and are not uncommon and this number is not greater than would have occurred naturally in the vaccinated population.