Epidemiological characteristics of the three waves of COVID-19 epidemic in Taiwan during April 2022 to March 2023.

ABSTRACT:

Background

Taiwan experienced a relatively low incidence of COVID-19 before 2022. However, from April 2022 to March 2023, the country was struck by a nationwide outbreak that occurred in three waves. Despite the considerable magnitude of the epidemic, the epidemiological characteristics of this outbreak have yet to be clearly understood.

Methods

This was a nationwide, population-based, retrospective cohort study. We recruited patients who had been confirmed as domestically-acquired COVID-19 patients from April 17, 2022, to March 19, 2023. The three epidemic waves were analyzed in terms of numbers of cases, cumulative incidence, numbers of COVID-19-related deaths, mortality, gender, age, residence, SARS-CoV-2 variant sub-lineages, and reinfection status.

Results

The nu

SUBMITTER: Chen YH 

PROVIDER: S-EPMC10213295 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature