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Virology is the scientific discipline concerned with the study of the biology of viruses and viral diseases, including the distribution, biochemistry, physiology, molecular biology, ecology, evolution and clinical aspects of viruses.
Age is the single greatest risk factor driving mortality after encounter with SARS-CoV-2. A new study shows that the composition of nasal epithelial cells varies across ages, facilitating SARS-CoV-2 growth and spread in older people.
Excess mortality can be used as an indicator of the impacts of the COVID-19 pandemic. Here, the authors estimate excess mortality in 569 European regions in 25 countries for 2020 and 2021 and describe how impacts changed over time.
Multi-Inflammatory Syndrome in Children (MIS-C) is a severe post-infectious presentation related to SARS-CoV-2 infection. Here authors used multi-omics approaches to characterise MIS-C cases and found increased CD95 and IL-18 signalling accompanying the expansion of TCR Vβ 21.3+ T cells.
Waning immunity and the emergence of the SARS-CoV-2 Omicron lineage led to reduced vaccine effectiveness and required vaccine updates. Here, the authors assess how different priming regimens affect the immunogenicity of BA.1 and BA.5 bivalent boosters.
The molecular basis underlying infection infection-mediated lung pathology is not fully revealed. Here the authors report that SPARCL1 expressed in pulmonary capillary endothelial cells contributes to immune pathology in mouse model via pro-inflammatory macrophage induction, while circulating SPARCL1 levels corelate with COVID-19 lethality.
In this study, Zhang et al. report that a bacterial symbiont residing in the gut of Aedes albopictus mosquitoes protects them from flavivirus infection.