This background document has been prepared by the Strategic Advisory Group of Experts (SAGE) on Immunization Working Group on COVID-19 Vaccines to inform the discussions of SAGE at its 21 January 2021 extraordinary meeting (1), which resulted in the issuance of the 25 January 2021 WHO Interim recommendations for use of the Moderna mRNA-1273 vaccine against COVID-19.

SAGE background document Moderna COVID-19 vaccine COVID-19