Efficacy for mRNA COVID-19 vaccines is 85% in people over 18 years

The investigators found in a review article of 7 articles on the efficacy of the COVID-19 vaccine, 4 (57%) were on the adenovirus vector vaccine and 3 (43%) on the mRNA vaccines, that the collective vaccine efficacy for the adenovirus vector vaccines is 73% and for the mRNA vaccines is 85% in people over 18 years. The efficacy of the COVID-19 vaccines was calculated after vaccination of the final dose. Evidence of the long-term protection of the vaccines in people aged under 16 years against the multiple variants of COVID-19 are limited.

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Efficacy for mRNA COVID-19 vaccines is 85% in people over 18 years