COVID variant pathogenesis is the study of how genetically distinct lineages of SARS-CoV-2 cause disease, from initial infection through tissue injury and the host response. The virus enters cells via its spike glycoprotein, and mutations in this protein, tracked through comparative sequence analysis of regional iso…
COVID variant pathogenesis is the study of how genetically distinct lineages of SARS-CoV-2 cause disease, from initial infection through tissue injury and the host response. The virus enters cells via its spike glycoprotein, and mutations in this protein, tracked through comparative sequence analysis of regional isolates, can change how efficiently it binds receptors, replicates, and evades immune recognition. Once established, infection of the respiratory epithelium can progress to acute pneumonia, and in severe cases to acute respiratory distress syndrome, driven not only by direct viral damage but by dysregulated immune and inflammatory responses, including altered cytokine and interferon signalling. Variant pathogenesis examines how lineage-specific mutations modulate these processes, potentially shifting viral kinetics, tropism, and the balance between protective and harmful host responses. Predictive modelling of likely mutations and the interpretation of reported case data help relate molecular changes to disease behaviour at the population level. Understanding these mechanisms clarifies why some variants may produce different severity or transmissibility and informs the development of therapeutics that target viral entry, replication, or immunopathology. By connecting molecular evolution to clinical outcome, the study of variant pathogenesis underpins efforts to anticipate and counter the changing course of SARS-CoV-2 infection.
10 peer-reviewed articles, ranked by relevance. Each links to its DOI.
The 10 articles above have been cited 18 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.
A sample of recent works citing this journal's research on Covid Variant Pathogenesis, linking to each citing work.