Learning outcomes
By the end of this week, you should be able to:
describe what is meant by a genomic variant of SARS-CoV2 and say how it is detected
define the characteristics of Variants of Concern and outline how they have spread
explain why some variants have a selective advantage over others
relate genetic changes in new variants to their ability to evade antibodies produced against earlier strains or original vaccines
describe how vaccines can be modified to provide continued protection against infection and disease.