Liham mula kay Propesor Wei Shen Lim (Tagapangulo ng Joint Committee on Vaccination and Immunization, Public Health England) kay Matt Hancock (Secretary of State for Health and Social Care, Department of Health and Social Care) na may pamagat na pagsusuri ng CHM at JCVI sa mga masamang kaganapan na nauugnay sa bakunang AstraZeneca, na may petsang 01/04/2021.