Real-World Effectiveness of Four Types of COVID-19 Vaccines.

ABSTRACT:

Background

There is a scarcity of evidence regarding the real-world effectiveness of coronavirus disease 2019 (COVID-19) vaccines. This was the first study to evaluate the effectiveness of four types of vaccines against asymptomatic and symptomatic infection, and COVID-19 outcomes among the general population.

Methods

This was a matched comparison group quasi-experimental study conducted in Jordan between 1 January and 29 August 2021. In the first part of the study, 1200 fully vaccinated individuals were matched with 1200 unvaccinated control participants. In order to measure vaccine effectiveness, the infection rates of both vaccinated and unvaccinated groups were calculated. The second part of the study included measuring specific anti-SARS CoV-2 immune cells and antibodie

SUBMITTER: Abdel-Qader DH 

PROVIDER: S-EPMC10224211 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature