Past SARS-CoV-2 infection protection against re-infection: a systematic review and meta-analysis

ABSTRACT:

Background

Understanding the level and characteristics of protection from past SARS-CoV-2 infection against subsequent re-infection, symptomatic COVID-19 disease, and severe disease is essential for predicting future potential disease burden, for designing policies that restrict travel or access to venues where there is a high risk of transmission, and for informing choices about when to receive vaccine doses. We aimed to systematically synthesise studies to estimate protection from past infection by variant, and where data allow, by time since infection.

Methods

In this systematic review and meta-analysis, we identified, reviewed, and extracted from the scientific literature retrospective and prospective cohort studies and test-negative case-control studies published fro

SUBMITTER:  

PROVIDER: S-EPMC9998097 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature