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Federated causal inference based on real-world observational data sources: application to a SARS-CoV-2 vaccine effectiveness assessment.
Causality COVID-19 COVID-19 Vaccines Humans SARS-CoV-2 Vaccine Efficacy Abstract: INTRODUCTION: Causal inference helps researchers and policy-makers to evaluate public health interventions. When comparing ...
Clinical Severity of SARS-CoV-2 Omicron Variant Compared with Delta among Hospitalized COVID-19 Patients in Belgium during Autumn and Winter Season 2021-2022.
in-hospital mortality in hospitalized patients when infected with the Omicron variant compared to when infected with the Delta variant. The study is based on a causal framework using individually-linked data ...
Pre-vaccination SARS-CoV-2 seroprevalence among staff and residents of nursing homes in Flanders (Belgium) in fall 2020
Flanders, Belgium. Sociodemographic and medical data [including coronavirus disease 2019 (COVID-19) symptoms and results of RT- PCR tests] were retrieved using questionnaires. The overall seroprevalence was ...
Leveraging of SARS-CoV-2 PCR Cycle Thresholds Values to Forecast COVID-19 Trends.
SARS-CoV-2 RT- PCR Ct values produced from April 1, 2020, to May 15, 2021, were compared with national COVID-19 confirmed cases notifications according to their geographical and time distribution. These Ct ...