https://theconversation.com/covid-vaccine-effects-wane-over-time-but-still-prevent-death-and-severe-illness-167587
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9/15/21 at 9:07am
Organization
The Conversation Africa
Author
Sheena Cruickshank
Governments are launching booster programmes over fears about waning immunity levels, but vaccines are still highly effective at what matters most – preventing severe disease.
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