Search results for "sars-cov-2"
showing 10 items of 1204 documents
Microscopic interactions between ivermectin and key human and viral proteins involved in SARS-CoV-2 infection
2021
The identification of chemical compounds able to bind specific sites of the human/viral proteins involved in the SARS-CoV-2 infection cycle is a prerequisite to design effective antiviral drugs. Here we conduct a molecular dynamics study with the aim to assess the interactions of ivermectin, an antiparasitic drug with broad-spectrum antiviral activity, with the human Angiotensin-Converting Enzyme 2 (ACE2), the viral 3CLpro and PLpro proteases, and the viral SARS Unique Domain (SUD). The drug/target interactions have been characterized in silico by describing the nature of the non-covalent interactions found and by measuring the extent of their time duration along the MD simulation. Results …
Telemedicine Online Visits in Urology During the COVID-19 Pandemic-Potential, Risk Factors, and Patients' Perspective.
2020
The current coronavirus disease 2019 (COVID-19) pandemic has placed considerable strain on hospital resources. We explored whether telemedicine (defined as a videoconference) might help. We undertook prospective structured phone interviews of urological patients (n = 399). We evaluated their suitability for telemedicine (judged by a panel of four physicians) and their risks from COVID-19 (10 factors for a poor outcome), and collected willingness for telemedicine and demographic data. Risk factors for an adverse outcome from COVID-19 infection were common (94.5% had one or more) and most patients (63.2%) were judged suitable for telemedicine. When asked, 84.7% of patients wished for a teleme…
Coronavirus disease 2019 in chronic kidney disease
2020
Abstract The clinical spectrum of coronavirus disease 2019 (COVID-19) infection ranges from asymptomatic infection to severe pneumonia with respiratory failure and even death. More severe cases with higher mortality have been reported in older patients and in those with chronic illness such as hypertension, diabetes or cardiovascular diseases. In this regard, patients with chronic kidney disease (CKD) have a higher rate of all-type infections and cardiovascular disease than the general population. A markedly altered immune system and immunosuppressed state may predispose CKD patients to infectious complications. Likewise, they have a state of chronic systemic inflammation that may increase …
SARS-CoV-2 vaccine response and rate of breakthrough infection in patients with hematological disorders
2022
Abstract Background The clinical efficacy of SARS-CoV-2 vaccines according to antibody response in immunosuppressed patients such as hematological patients has not yet been established. Patients and methods A prospective multicenter registry-based cohort study conducted from December 2020 to December 2021 by the Spanish transplant and cell therapy group was used to analyze the relationship of antibody response at 3–6 weeks after full vaccination (2 doses) with breakthrough SARS-CoV-2 infection in 1394 patients with hematological disorders. Results At a median follow-up of 165 days after complete immunization, 37 out of 1394 (2.6%) developed breakthrough SARS-CoV-2 infection at median of 77 …
Reversible radiculomyelitis after ChAdOx1 nCoV-19 vaccination
2022
Adverse events occurring after SARS-CoV-2 vaccination have been reported and are the subject of ongoing research. We present the case of a young woman with fully reversible radiculomyelitis, which happened after the first dose of the ChAdOx1 nCOVID-19 vaccine. A previously healthy woman in her 20s presented with a subacute onset of legs’ weakness and sensory disturbances, urinary dysfunction and cramping pain after receiving the first dose of the ChAdOx1 nCoV-19 vaccine. A diagnostic workup led to the diagnosis of inflammatory radiculomyelitis. Her clinical status improved, with complete recovery after a few months. The case described a reversible radiculomyelitis associated with the ChAdOx…
How to remove the testing bias in CoV-2 statistics
2020
BACKGROUNDPublic health measures and private behaviour are based on reported numbers of SARS-CoV-2 infections. Some argue that testing influences the confirmed number of infections.OBJECTIVES/METHODSDo time series on reported infections and the number of tests allow one to draw conclusions about actual infection numbers? A SIR model is presented where the true numbers of susceptible, infectious and removed individuals are unobserved. Testing is also modelled.RESULTSOfficial confirmed infection numbers are likely to be biased and cannot be compared over time. The bias occurs because of different reasons for testing (e.g. by symptoms, representative or testing travellers). The paper illustrat…
Emergence and spread of a SARS-CoV-2 variant through Europe in the summer of 2020.
2020
A variant of SARS-CoV-2 emerged in early summer 2020, presumably in Spain, and has since spread to multiple European countries. The variant was first observed in Spain in June and has been at frequencies above 40% since July. Outside of Spain, the frequency of this variant has increased from very low values prior to 15th July to 40-70% in Switzerland, Ireland, and the United Kingdom in September. It is also prevalent in Norway, Latvia, the Netherlands, and France. Little can be said about other European countries because few recent sequences are available. Sequences in this cluster (20A.EU1) differ from ancestral sequences at 6 or more positions, including the mutation A222V in the spike pr…
Factors Associated With Severe Gastrointestinal Diagnoses in Children With SARS-CoV-2 Infection or Multisystem Inflammatory Syndrome
2021
Key Points Question Is COVID-19 associated with severe gastrointestinal manifestations in children? Findings In this multicenter cohort study of 685 Italian children with COVID-19, 10% showed severe gastrointestinal involvement characterized by diffuse adeno-mesenteritis, appendicitis, abdominal fluid collection, ileal intussusception, or pancreatitis. Children older than 5 years and those presenting with abdominal pain, leukopenia, or receiving a diagnosis of multisystem inflammatory syndrome were more likely to have severe gastrointestinal manifestations. Meaning Severe gastrointestinal involvement is not uncommon in children with COVID-19, and awareness about its frequency and presentati…
Risk of Virus Contamination Through Surgical Smoke During Minimally Invasive Surgery: A Systematic Review of the Literature on a Neglected Issue Revi…
2020
Abstract Context The coronavirus disease 2019 (COVID-19) pandemic raised concerns about the safety of laparoscopy due to the risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) diffusion in surgical smoke. Although no case of SARS-CoV-2 contagion related to surgical smoke has been reported, several international surgical societies recommended caution or even discouraged the use of a laparoscopic approach. Objective To evaluate the risk of virus spread due to surgical smoke during surgical procedures. Evidence acquisition We searched PubMed and Scopus for eligible studies, including clinical and preclinical studies assessing the presence of any virus in the surgical smoke fr…
Post-mortem findings in vaccine-induced thrombotic thrombocytopenia
2021
Greinacher et al.1 and Schultz et al.2 were the first to independently report the main clinical and laboratory features of 11 and five respective patients from Germany, Austria and Norway who developed life-threatening thrombohemorrhagic complications 5 to 16 days after the administration of the first dose of the chimpanzee adenoviral vector vaccine ChAdOx1nCoV-19 against SARS-CoV-2 and COVID-19. Subsequently Scully et al.3 reported similar findings in 23 patients treated with the same vaccine in the United Kingdom. More recently, See et al.4 reported a case series of 12 patients from the USA with cerebral venous sinus thrombosis following the vaccination with Ad26.CoV2.S employing a human …