Articles: sars-cov-2.
-
The SARS-CoV-2 Omicron is currently the predominant circulating variant in the COVID-19 pandemic. The dominating Omicron sublineages respond to host immune pressure and develop advantageous mutations or genetic recombination, which result in variants that are more contagious or better at escaping immune responses in response to previous infection or vaccination. Meanwhile, multiple genetic recombination events have been reported in coinfection cases, the majority of which have resulted from the recombination between co-circulating Omicron BA.1 (or BA.1.1) and Delta variant or BA.2. Here, we review the knowledge and characterization of recombination for SARS-CoV-2 at the population level, provide an update on the occurrence of newly circulating Omicron sublineages, and discuss the effectiveness of novel vaccines/therapeutic drugs against the Omicron variant.
-
Eur. J. Intern. Med. · Jan 2023
Randomized Controlled Trial Multicenter StudyTreatment with COLchicine in hospitalized patients affected by COVID-19: The COLVID-19 trial.
To evaluate whether the addition of colchicine to standard of care (SOC) results in better outcomes in hospitalized patients with COVID-19. ⋯ Colchicine did not reduce the rate and the time to the critical stage. Colchicine was relatively safe although adverse hepatic effects require caution. We confirm that older (>60 years) patients with comorbidities are characterized by worse outcome.
-
Multicenter Study
Prevalence and 24-month recovery of olfactory dysfunction in COVID-19 patients: A multicenter prospective study.
To investigate the prevalence and recovery of olfactory dysfunction (OD) in COVID-19 patients 24 months after the infection. ⋯ Two years post-COVID-19, 29.8% of patients reported persistent OD, but only 2.9% had abnormal identification psychophysical evaluations.
-
Meta Analysis
Anticoagulation therapy in hospitalized patients with COVID-19: a meta-analysis of randomized clinical trials.
Thromboembolic events are common in hospitalized patients with COVID-19, suggesting that SARS-CoV-2 infection may be related to a prothrombotic state. Several clinical trials evaluating different anticoagulation strategies were developed. Thus, we proposed conducting a meta-analysis of randomized clinical trials that evaluated the efficacy and safety of therapeutic anticoagulation with heparins in hospitalized patients with COVID-19. ⋯ This meta-analysis did not show a reduction in all-cause mortality in hospitalized patients with COVID-19 who received anticoagulation with heparin at a therapeutic dose compared to those who received a prophylactic/intermediate dose, as well as no significant differences were found in the need of intensive care unit admission or use of non-invasive ventilation. There was, however, a reduction in thromboembolic events, pulmonary embolism, and increased bleeding (Tab. 1, Fig. 5, Ref. 31). Keywords: COVID-19, anticoagulation, heparins, meta-analysis.