Just How?

How the Pfizer-BioNTech Vaccine Works

Preliminary data indicates the Pfizer vaccine is over 90 percent effective, with no serious side effects. The final data from the trial shows the efficacy rate is 95 percent.

That is beyond amazing. Confused by the all technical terms used to describe how vaccines work and are investigated?

Please proceed here to the excellent New Yourk times ilustrated explanation article.

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