A real-world study of BBIBP-CorV vaccine effectiveness in a Sri Lanka rural province.

ABSTRACT:

Objective

Real-world studies assessing the effectiveness of the BBIBP-CorV vaccine in low and middle-income countries are limited. We evaluated the BBIBP-CorV vaccine's effectiveness in reducing COVID-19 symptomatic disease, hospitalisation, severe disease, and mortality during the third wave of the pandemic in Sri Lanka.

Methods

We conducted a test-negative case-control study in North Central Province from May 2021 to February 2022. Evidence of vaccination was obtained from the national registry. The PCR-positive patients were cases, while negative individuals were controls. Adjusted vaccine effectiveness (aVE) was computed for fully, partially, and non-vaccinated groups in reducing symptomatic disease, hospitalisation, severe disease, and mortality.

Results

Our stud

SUBMITTER: Wijekoon L 

PROVIDER: S-EPMC11422056 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature