SARS-CoV-2 reinfections during the first three major COVID-19 waves in Bulgaria.

ABSTRACT:

Background

The COVID-19 pandemic has had a devastating impact on the world over the past two years (2020-2021). One of the key questions about its future trajectory is the protection from subsequent infections and disease conferred by a previous infection, as the SARS-CoV-2 virus belongs to the coronaviruses, a group of viruses the members of which are known for their ability to reinfect convalescent individuals. Bulgaria, with high rates of previous infections combined with low vaccination rates and an elderly population, presents a somewhat unique context to study this question.

Methods

We use detailed governmental data on registered COVID-19 cases to evaluate the incidence and outcomes of COVID-19 reinfections in Bulgaria in the period between March 2020 and early Decembe

SUBMITTER: Marinov GK 

PROVIDER: S-EPMC9462809 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature