Vaccine efficacy v. effectiveness — and what it all means | Science| In-depth reporting on science and technology | DW | 26.11.2020
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Science

Vaccine efficacy v. effectiveness — and what it all means

What's the difference between a vaccine's efficacy and effectiveness? And how do the recent vaccine candidates from Moderna, AstraZeneca, Pfizer and BioNTech stack up compared to existing vaccines for polio, measles and other diseases?

Listen to audio 08:48