HealthAsk Derrick: Third jab against delta variantTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealth11/23/2021November 23, 2021Messenger RNA vaccines can theoretically be adapted to keep pace with a mutating pathogen. But a booster with the existing formulation already kicks the immune response in recipients back up to very high levels of protection, also against delta.https://p.dw.com/p/43MzCAdvertisement