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Conceptual causal framework to assess the effect of SARS-CoV-2 variants on COVID-19 disease severity among hospitalized patients
their genomes over the course of the pandemic. The severity of a SARS-CoV-2 infection could partly depend on these viral genetic characteristics. Here, we present a general conceptual framework that ...
Vaccine effectiveness against infection and onwards transmission of COVID-19: Analysis of Belgian contact tracing data, January-June 2021.
number of viral-vector vaccines included limited interpretability. Health Topics: Post-authorisation surveillance of COVID-19 vaccines Post-autorisatie surveillance van COVID-19 vaccins Surveillance ...