Optimal levels of vaccination to reduce COVID-19 infected individuals and deaths: A global analysis – ScienceDirect

Findings reveal that the average level of administering about 80 doses of vaccines per 100 inhabitants between countries can sustain a reduction of confirmed cases and numbers of deaths. In addition, results suggest that an intensive vaccination campaign in the initial phase of pandemic wave leads to a lower optimal level of doses administered per 100 inhabitants (roughly 47 doses of vaccines) for reducing infected individuals; however, the growth of pandemic wave moves up the optimal level of vaccines to about 90 doses for reducing the numbers of COVID-19 related infected individuals. All these results here could aid policymakers to prepare optimal strategies directed to a rapid COVID-19 vaccination rollout, before the takeoff of pandemic wave, to lessen negative effects of pandemic crisis on environment and socioeconomic systems. Source: Optimal levels of vaccination to reduce COVID-19 infected individuals and deaths: A global analysis – ScienceDirect