Will ‘orig­i­nal anti­genic sin’ un­der­mine Omi­cron boost­ers? New re­search sug­gests ‘no’

Mod­er­na and Pfiz­er-BioN­Tech are now rac­ing to de­vel­op Omi­cron-spe­cif­ic boost­ers, hop­ing to be ready if the new im­mune-eva­sive vari­ant be­comes dom­i­nant glob­al­ly. But it wasn’ …

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