Articles: sars-cov-2.
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Hypertension, diabetes mellitus, and coronary artery disease are common comorbidities and dangerous factors for infection and serious COVID-19. Polymorphisms in genes associated with comorbidities may help observe susceptibility and disease severity variation. However, specific genetic factors and the extent to which they can explain variation in susceptibility of severity are unclear. ⋯ The key genes IL6 and AGT are involved in regulating immune response, cytokine activity, and viral infection. Therefore, RAAS inhibitors, AGT antisense nucleotides, cytokine inhibitors, vitamin D, fenofibrate, and vaccines regulating non-immune and immune factors could be potential strategies to prevent and cure COVID-19. The study provides a basis for further investigation of genes and pathways with predictive value for the risk of infection and prognosis and could help guide drug and vaccine development to improve treatment efficacy and the development of personalised treatments, especially for COVID-19 individuals with common comorbidities.
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There are aspects of COVID-19 pathogenesis that are still unknown. ⋯ SARS-CoV-2 VL determined at hospital admission might classify risk simultaneously with other factors described in COVID-19.
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This study aimed to investigate the clinical features and vaccine effectiveness of patients with the SARS-CoV-2 wild-type strain and the Delta variant. ⋯ The Delta-variant group show higher transmissibility, and vaccination reduces the incidence of severe classification and promotes viral clearance.
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COVID-19 superspreader events have occurred when symptomatic individuals without wearing face masks boarded buses. ⋯ Strict nonpharmacological preventive interventions substantially reduced the risk of COVID-19 super-spreader events in buses boarded by presymptomatic individuals.