Vaccination strategies and transmission of COVID-19: Evidence across advanced countries.

ABSTRACT: Given limited supply of approved vaccines and constrained medical resources, design of a vaccination strategy to control a pandemic is an economic problem. We use time-series and panel methods with real-world country-level data to estimate effects on COVID-19 cases and deaths of two key elements of mass vaccination - time between doses and vaccine type. We find that new infections and deaths are both significantly negatively associated with the fraction of the population vaccinated with at least one dose. Conditional on first-dose coverage, an increased fraction with two doses appears to offer no further reductions in new cases and deaths. For vaccines from China, however, we find significant effects on both health outcomes only after two doses. Our results support a policy of extending th

SUBMITTER: Kim D 

PROVIDER: S-EPMC8769883 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature