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	Podcast:		Spectrum \| Deutsche Welle
	Episode:		Vaccine efficacy v. effectiveness — and what it all means
	Category:		Technology
	Duration:		00:08:47
	Publish Date:		2020-11-26 15:46:00
	Description:		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?
	Total Play:		0