Scale of Sars-Cov-2 immunity still unclear | COVID-19 Special

DW News published this video item, entitled “Scale of Sars-Cov-2 immunity still unclear | COVID-19 Special” – below is their description.

How long can a virus keep attacking me – especially when I’ve been previously infected? How long do my antibodies survive in my blood? How long does a vaccine defend my immune system against an intruder?

Scientists are grappling with these questions. And they have yet to find out for certain, how long vaccine protection lasts.

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