Objective : To generate a concept of brain performance capacity (BPC) with sleep, fatigue and mental workload as evaluation indicators and to analyze the correlation between BPC and the impact of COVID-19. Methods: A cluster sampling method was adopted to randomly select 259 civil air crew members. The measurements of sleep quality, fatigue and mental workload (MWL) were assessed using the Pittsburgh Sleep Quality Index (PSQI), Multidimensional Fatigue Inventory (MFI-20) and NASA Task Load Index. The impact of COVID-19 included 7 dimensions scored on a Likert scale. Canonical correlation analysis (CCA) was conducted to examine the relationship between BPC and COVID-19. Results: A total of 259 air crew members participated in the survey. Participants’ average PSQI score was 7.826 (SD = 3.796), with 49.8% reporting incidents of insomnia, mostly of a minor degree. Participants’ MFI was an average 56.112 (SD = 10.040), with 100% reporting some incidence of fatigue, mainly severe. The weighted mental workload (MWL) score was an average of 43.084 (SD = 17.543), with reports of mostly a mid-level degree. There was a significant relationship between BPC and COVID-19, with a canonical correlation coefficient of 0.507 ( P =0.000), an eigenvalue of 0.364 and a contribution rate of 69.1%. All components of the BPC variable set: PSQI, MFI and MWL contributed greatly to BPC, with absolute canonical loadings of 0.790, 0.606 and 0.667, respectively; the same was true for the COVID-19 variable set, with absolute canonical loadings ranging from 0.608 to 0.951. Conclusion: Multiple indicators to measure BPC and the interrelationship of BPC and COVID-19 should be used in future research to gain a comprehensive understanding of anti- epidemic measures to ensure victory in the battle against the spread of the disease.
The SARS-CoV-2 Omicron BA.1 variant is rapidly spreading worldwide, possibly outcompeting the Delta strain. We investigated the empirical serial interval for both variants using contact tracing data. Overall, we observed a shorter serial interval for Omicron compared to Delta, suggesting faster transmission. Furthermore, results indicate a relation between the empirical serial interval and the vaccination status for both the Omicron and the Delta variant. Consequently, with the progression of the vaccination campaign, the reasons for and extent of dominance of Omicron over Delta may need further assessment.
Background: Reports of SARS-CoV-2 causing laryngotracheobronchitis (commonly known as croup) have been limited to small case series. Early reports suggest the Omicron (B.1.1.529) strain of SARS-CoV-2 (the dominant circulating US strain since the week of 12/25/2021) replicates more efficiently in the conducting airways. This may increase the risk of a croup phenotype in children as they have smaller airway calibers. Methods: Description of the incidence, change over time, and characteristics of children with SARS-CoV-2 and upper airway infection (UAI) diagnoses within the National COVID Cohort Collaborative (N3C) before and during the rise of the Omicron variant. We compare the demographics, comorbidities, and clinical outcomes of hospitalized SARS-CoV-2 positive children with and without UAI. Results: SARS-CoV-2 positive UAI cases increased to the highest number per month (N = 170) in December 2021 as the Omicron variant became dominant. Of 15,806 hospitalized children with SARS-CoV-2, 1.5% (234/15,806) had an UAI diagnosis. Those with UAI were more likely to be male, younger, white, have asthma and develop severe disease as compared to those without UAI. Conclusions: Pediatric acute UAI cases have increased during the Omicron variant surge with many developing severe disease. Improved understanding of this emerging clinical phenotype could aid in therapeutic decision-making and healthcare resource planning.
This is a protocol for a systematic review that aims to evaluate the role of viral cultures for assessing airborne transmission of SARS-CoV-2. The review will address the following research questions: Are airborne samples infectious? If so, what proportion are infectious, and what is the distance and duration of infectiousness in the air? What is the relationship between infectiousness and airborne PCR cycle threshold (Ct)? Is there evidence of a chain of transmission that establishes an actual instance of airborne transmission of SARS-CoV-2? What circumstances might facilitate infectious viruses being airborne over long distances? We will search LitCovid, medRxiv, Google Scholar, and the WHO Covid-19 database to identify relevant studies. We will include studies reporting airborne transmission attempting viral culture or serial qRT-PCR with or without genomic sequencing. Predictive or modelling studies will be excluded. We will assess the quality of included studies using previously published criteria.
Pathways of transmission of coronavirus (COVID-19) disease in the human population are still emerging, but empirical observations suggest that dense human settlements are the most adversely impacted, corroborating a broad consensus that human to human transmission is a key mechanism for rapid spread of this disease. Here, using logistic regression techniques, estimates of threshold levels of population density were computed corresponding to the probability of infection in human population. Regions with population densities greater than 5000 people per square mile in the United States have about 95% probability of COVID-19 transmission. Since case numbers of COVID-19 dynamically changed each day until November 30, 2020, ca. 4% of US counties were at 50% or higher risk of COVID-19. While threshold on population density is not the sole indicator for the outbreak of coronavirus in human population, yet it is one of the key variables on understanding and rethinking human settlement in urban landscapes.
There has been debate in the literature about the ability of antigen tests to detect the SARS-CoV-2 Omicron variant including indication on the US Food and Drug administration website that antigen tests may have lower sensitivity for the Omicron variant without provision of data or the potential scale of the issue (see https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/sars-cov-2-viral-mutations-impact- covid-19-tests - omicronvariantimpact, accessed 1/27/2022). Here we determined the limit of detection (LoD) for the Omicron variant compared with the WA1 strain used for LoD studies described in the Instructions for Use for all Emergency Use Authorization (EUA)-approved antigen tests. Using live virus (to avoid artifactual findings potentially obtained with gamma-irradiated or heat-killed virus) quantified by plaque forming units (PFU), we examined the analytical sensitivity of three antigen tests widely used in the United States: the Abbott Binax Now, the AccessBio CareStart , and LumiraDx antigen tests. We found that the 95% detection threshold (LoD) for antigen tests was at least as good for Omicron as for the WA1 strain. Furthermore, the relationship of genome copies to plaque forming units for Omicron and WA1 overlap. Therefore, the LoD equivalency also applies if the quantitative comparator is genome copies determined from live virus preparations. Taken together, our data support the continued ability of the antigen tests examined to detect the Omicron variant.
S-gene target failure (SGTF) is neither specific nor accurate for identification of Omicron lineage of SARS- CoV-2. We observed N-gene target failure (NGTF) in 402 out of 412 SARS-CoV2 positive cases from December to mid-January 2022 using a commercially available assay. This phenomenon was not observed with more than 15,000 cases tested previously. We sequenced the genome of five samples with NGTF and compared these results with six cases where NGTF was not seen. We confirm that cases with NGTF were the Omicron lineage while cases with preserved N-gene amplification belonged to Delta lineage. We discovered that the ERS31-33 deletion (nucleotide 28362-28370del) overlaps with N gene probe used, explaining NGTF. As the 9stealth9 Omicron variant also harbors ERS31-33 deletion, this approach will work for the detection of 9stealth9 Omicron variant as well. We suggest that NGTF can be used as a low cost, rapid screening strategy for detection of Omicron.
Background Currently used vaccines to protect from COVID-19 mostly focus on the receptor-binding domain (RBD) of the viral spike protein, and induced neutralizing antibodies have shown to be protective. However, functional relevance of vaccine-generated antibodies are poorly understood on variants-of-concern (VOCs) and mucosal immunity. Methods We compared specific antibody production against the S1 subunit and the RBD of the spike protein, the whole virion of SARS- CoV-2, and monitored neutralizing antibodies in sera and saliva of 104 BNT162b2 vaccinees and 57 individuals with natural SARS-CoV-2 infection. Furthermore, we included a small cohort of 11 individuals which received a heterologous ChAdOx1-S/BNT162b2 prime-boost vaccination. Results Vaccinated individuals showed higher S1-IgG antibodies in comparison to COVID-19 patients, followed by a significant decrease 3 months later. Neutralizing antibodies (nAbs) were poorly correlated with initial S1-IgG levels, indicating that these might largely be non-neutralizing. In contrast, RBD IgGAM was strongly correlated to nAbs, suggesting that RBD-IgGAM is a surrogate marker to estimate nAb concentrations after vaccination. The protective effect of vaccine- and infection-induced nAbs was found reduced towards B.1.617.2 and B.1.351 VOCs. NAb titers are significantly higher after third vaccination compared to second vaccination. In contrast to COVID-19 patients, no relevant levels of RBD specific antibodies were detected in saliva samples from vaccinees. Conclusions Our data demonstrate that BNT162b2 vaccinated individuals generate relevant neutralizing antibodies, which begin to decrease within three months after immunization and show lower neutralizing potential to VOCs as compared to the original Wuhan virus strain. A third booster vaccination provides a stronger nAb antibody response than the second vaccination. The systemic vaccine does not seem to elicit readily detectable mucosal immunity.
Background: The magnitude of Omicron SARS-CoV-2 variant of concern (VOC) global spread necessitates reinforcement of surveillance implementation. Conventional VOC surveillance based on genotyping of clinical samples is characterized by certain challenges related to available sequencing capacity, population sampling methodologies, and demands in terms of time, labor, and resources. Wastewater-based SARS-CoV-2 VOC surveillance constitutes a valuable supplementary practice, since it does not require extensive sampling, and provides information on the prevalence of the disease in a timely and cost-effective manner. Methods: A highly sensitive real-time RT-PCR assay was developed, for targeted Omicron VOC detection and quantification in wastewater samples. The assay exclusively amplifies sequences with the S:Δ69/70 deletion, thus its performance is not hampered by the presence of the Delta VOC. The method was incorporated in the analysis of composite daily samples taken from the main Wastewater Treatment Plant (WWTP) of Thessaloniki, Greece from 1 December 2021 to 9 January 2022. Results: The Omicron VOC was detected for the first time in samples from the Thessaloniki WWTP on 19 December 2021. In the following 10-day period, a rapid increase in Omicron sewage viral load was observed with an estimated early doubling time of 1.86 days. The proportion of the total SARS- CoV-2 load attributed to Omicron reached 91.09% on 7 January, revealing a fast Delta-to-Omicron VOC transition pattern. The detection of Omicron in wastewater preceded the outburst of reported (presumable) Omicron cases in the city by approximately 7 days. Conclusions: The proposed wastewater-based surveillance approach enables rapid, real-time data acquisition on the Omicron VOC prevalence and transmission dynamics. Timely provision of these results to State authorities can readily influence the decision-making process for targeted public health interventions, including control measures, awareness, and preparedness.
Objectives To develop and externally geographically validate a mixed-effects deep learning model to diagnose COVID-19 from computed tomography (CT) imaging following best practice guidelines and assess the strengths and weaknesses of deep learning COVID-19 diagnosis. Design Model development and external validation with retrospectively collected data from two countries. Setting Hospitals in Moscow, Russia, collected between March 1, 2020, and April 25,
India had witnessed unprecedented surge in SARS-CoV-2 infections and its dire consequences during the second wave of COVID-19, but the detailed report of the epidemiological based spatiotemporal incidences of the disease is missing. Here in, we have applied various statistical methods like correlation, hierarchical clustering to know the pattern of pathogenesis of the circulating VoCs. B.1.617.1 (Kappa) was the predominant VoC during the early phase of second wave. Delta (B.1.617.2) or Delta-like (AY.x) VoC constitutes majority (>90.17) of the cases during the peak of second wave. The correlation plot showed Delta/Delta-like lineage is inversely correlated with other lineages including B.1.617.1 (kappa), B.1.1.7, B.1, B.1.36.29 and B.1.36. Delta/Delta-like surge coincided with second wave whereas all other lineages (B.1.617.1, B.1.36.29, etc.) occurred during the prior phase of the second wave. The spatiotemporal analysis showed that most of the Indian states were affected during the peak of the second wave due to delta surge and fall under the same cluster. The second cluster populated mostly by north-eastern states and islands of India were minimally affected. The presence of signature mutations (T478K, D950N, E156G) along with L452K, D614G and P681R within the spike protein of Delta or Delta-like might cause elevation in host cell attachment, increased transmission and altered antigenicity which in due course of time has replaced the other circulating variants.. The timely assessment of new VoCs will provide a rationale for updating the diagnostic, vaccine development by medical industries and decision making by various agencies including government, educational institutions, and corporate industries.
Throughout the COVID-19 pandemic nasopharyngeal or nose/throat swabs (NTS) have been the primary approach for collecting patient samples for the subsequent detection of viral RNA. However, this procedure, if undertaken correctly, can be unpleasant and therefore deters individuals from providing high quality samples. To overcome these limitations other modes of sample collection have been explored. In a cohort of frontline healthcare workers we have compared saliva and gargle samples to gold-standard NTS. 93% of individuals preferred providing saliva or gargle samples, with little sex-dependent variation. Viral titres collected in samples were analysed using standard methods and showed that gargle and saliva were similarly comparable for identifying COVID-19 positive individuals compared to NTS (92% sensitivity; 98% specificity). We suggest that gargle and saliva collection are viable alternatives to NTS swabs and may encourage testing to provide better disease diagnosis and population surveillance.
Quantifying Viral Load in Respiratory Particles That Are Generated by Children and Adults With COVID-19 Infection - Condition: COVID-19
Intervention: Device: COVID-19 Aerosol Collection
Sponsor:
Massachusetts General Hospital
Recruiting
A Study to Evaluate the Safety and Immunogenicity of Booster With AZD1222, mRNA-1273, or MVC-COV1901 Against COVID-19 - Condition: COVID-19 Vaccine
Interventions: Biological: Half dose of MVC-COV1901; Biological: Full dose of MVC-COV1901; Biological: AZD1222; Biological: Half dose of mRNA-1273
Sponsors: Medigen Vaccine Biologics Corp.; Coalition for Epidemic Preparedness Innovations
Not yet recruiting
Efficacy of Breathox Device Inhalation Therapy in the Treatment of Acute Symptoms Associated With COVID-19 and in the Prevention of the Use of Health Resources - Condition: COVID-19
Interventions: Drug: BREATHOX 5 sessions; Drug: BREATHOX 10 sessions
Sponsors: UPECLIN HC FM Botucatu Unesp; Liita Holdings LTD
Recruiting
A Study to Evaluate the Safety, Tolerability, and Immunogenicity of MVC-COV1901 or MVC-COV1901(Beta) Against COVID-19 - Condition: COVID-19 Vaccine
Interventions: Biological: MVC-COV1901(Beta); Biological: MVC- COV1901
Sponsor: Medigen Vaccine Biologics Corp.
Not yet recruiting
Exercise Fatigue Parameters and Endothelial Function in Pediatric Patients With a History of COVID-19 Infection or MIS-C - Conditions: COVID-19; MIS-C Associated With COVID-19
Interventions:
Device: Cardiopulmonary exercise test (CPET); Device: Peripheral Arterial Tonography (PAT) using the EndoPAT™ device; Diagnostic Test: Endothelin
Sponsors: Rambam Health Care Campus; The Baruch Padeh Medical Center, Poriya
Recruiting
Evaluate the Efficacy and Safety of TF0023 in Treatments for COVID-19 in Hospitalized Adults - Condition: COVID-19 Pneumonia
Intervention: Drug: TF0023
Sponsor:
Techfields Inc
Not yet recruiting
Immunogenicity of an Inactivated COVID-19 Vaccine - Condition: COVID-19
Intervention: Biological: Inactivated COVID-19 Vaccine
Sponsor: Sinovac Research and Development Co., Ltd.
Recruiting
Short Daily Versus Conventional Hemodialysis for COVID-19 Patients - Condition: COVID-19
Intervention: Other: Short daily dialysis
Sponsor:
Shahid Beheshti University of Medical Sciences
Completed
Non-inferiority Trial on Monoclonal Antibodies in COVID-19 - Condition: COVID-19
Interventions: Drug: Bamlanivimab Etesevimab; Drug: Sotrovimab; Drug: Casirivimab-Imdevimab
Sponsors: Azienda Ospedaliera Universitaria Integrata Verona; Agenzia Italiana del Farmaco; Azienda Sanitaria-Universitaria Integrata di Udine
Recruiting
Efficacy and Safety of Ingavirin®, 90 mg Capsules in Patients With COVID-19 - Condition: COVID-19
Interventions: Drug: Ingavirin®, 90 mg capsules; Drug: Placebo
Sponsor: Valenta Pharm JSC
Recruiting
Availability and Advice on Test Uptake During the COVID-19 Pandemic: a Vignette Study. - Condition: COVID-19
Interventions: Behavioral: Customised testing advice; Behavioral: Regular testing advice; Behavioral: LFT available; Behavioral: No LFT available
Sponsor:
National Institute for Public Health and the Environment (RIVM)
Completed
A Prospective, Phase II Study to Evaluate Safety of 101-PGC-005 (’005) for Moderate to Severe COVID-19 Disease Along With Standard of Care - Condition: COVID-19
Interventions: Drug: 101-PGC-005 (’005) + SOC; Drug: Placebo + SOC
Sponsor: 101 Therapeutics
Recruiting
To Evaluate Safety & Immunogenicity of DelNS1-2019-nCoV-RBD-OPT1 for COVID-19 in Healthy Adults Received 2 Doses of BNT162b2 - Condition: Covid19
Interventions: Biological: DelNS1-2019-nCoV-RBD-OPT1; Biological: Matching placebo
Sponsor: The University of Hong Kong
Not yet recruiting
Increasing COVID-19 Testing in Chicago’s African American Testing Desserts - Condition: COVID-19 Pandemic
Intervention: Behavioral: COVID-19 Testing
Sponsor: Rush University Medical Center
Recruiting
Phase 2b Booster Vaccination (TURKOVAC) Against COVID-19 - Conditions: COVID-19; Sars-CoV-2 Infection
Interventions: Biological: TURKOVAC-Dollvet; Biological: TURKOVAC-Koçak
Sponsor: Health Institutes of Turkey
Recruiting
Molecular Mechanism of SARS-CoVs Orf6 Targeting the Rae1-Nup98 Complex to Compete With mRNA Nuclear Export - The accessory protein Orf6 is uniquely expressed in sarbecoviruses including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which is an ongoing pandemic. SARS-CoV-2 Orf6 antagonizes host interferon signaling by inhibition of mRNA nuclear export through its interactions with the ribonucleic acid export 1 (Rae1)-nucleoporin 98 (Nup98) complex. Here, we confirmed the direct tight binding of Orf6 to the Rae1-Nup98 complex, which competitively inhibits RNA binding. We determined the…
ACE2 Shedding and the Role in COVID-19 - Angiotensin converting enzyme 2 (ACE2), a transmembrane glycoprotein, is an important part of the renin-angiotensin system (RAS). In the COVID-19 epidemic, it was found to be the receptor of severe acute respiratory syndrome coronavirus 2 (SARS-COV-2). ACE2 maintains homeostasis by inhibiting the Ang II-AT1R axis and activating the Ang I (1-7)-MasR axis, protecting against lung, heart and kidney injury. In addition, ACE2 helps transport amino acids across the membrane. ACE2 sheds from the…
A persistent high ambient temperature waned the community spread of Severe Acute Respiratory Syndrome Coronavirus-2 in Pakistan - The recent pandemic caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has increased the global concern over its transmission and prevention. Since there was an incontrovertible perception that environmental conditions might affect the spread of SARS-CoV-2, we analyzed the environmental variables impact on SARS-CoV-2 transmission in Pakistan. Our analytical study revealed that when the temperature remained high for consecutive 10 to 15-days, a significant decrease is…
Epigenetic Changes and Functions in Pneumoconiosis - Pneumoconiosis is one of the most common occupational diseases in the world, and specific treatment methods of pneumoconiosis are lacking at present, so it carries great social and economic burdens. Pneumoconiosis, coronavirus disease 2019, and idiopathic pulmonary fibrosis all have similar typical pathological changes-pulmonary fibrosis. Pulmonary fibrosis is a chronic lung disease characterized by excessive deposition of the extracellular matrix and remodeling of the lung tissue structure….
Spike-Dependent Opsonization Indicates Both Dose-Dependent Inhibition of Phagocytosis and That Non-Neutralizing Antibodies Can Confer Protection to SARS-CoV-2 - Spike-specific antibodies are central to effective COVID19 immunity. Research efforts have focused on antibodies that neutralize the ACE2-Spike interaction but not on non-neutralizing antibodies. Antibody-dependent phagocytosis is an immune mechanism enhanced by opsonization, where typically, more bound antibodies trigger a stronger phagocyte response. Here, we show that Spike-specific antibodies, dependent on concentration, can either enhance or reduce Spike-bead phagocytosis by monocytes…
In Silico Studies on Psilocybin Drug Derivatives Against SARS-CoV-2 and Cytokine Storm of Human Interleukin-6 Receptor - Various metabolites identified with therapeutic mushrooms have been found from different sources and are known to have antibacterial, antiviral, and anticancer properties. Over thousands soil growth-based mushroom metabolites have been discovered, and utilized worldwide to combat malignancy. In this study, psilocybin-mushroom that contains the psychedelic compounds such as psilacetin, psilocin, and psilocybine were screened and found to be inhibitors of SARS- CoV-2 Mprotease. It has been found…
Effect of glycyrrhizic acid on phospholipid membranes in media with different pH - Glycyrrhizic acid (GA) is the active ingredient in licorice root, which exhibits a wide range of biological activities, including anti-inflammatory and antiviral activities. In particular, the virus-inhibiting effect of GA on SARS- associated coronavirus was demonstrated. In addition, GA was found to be capable of increasing bioaccessibility of other drugs when used together. All these effects can be based on the ability of GA to incorporate into cell membranes and change their physical and…
The perils of hotel technology: The robot usage resistance model - The COVID-19 outbreak has accelerated the development of service robots. However, service robots in some hotels have been put aside despite successful adoption. This study thus focuses on hotel employees’ inhibited continuous usage intention by examining the challenges of benefiting from service robots. A robot usage resistance model (RURM) has been proposed based on the results. In this model, lack of authentic anthropomorphous features and low usability as technological characteristics could…
Anti-mycobacterial activity of heat and pH stable high molecular weight protein(s) secreted by a bacterial laboratory contaminant - CONCLUSIONS: The present study highlights the anti-mycobacterial activity of high molecular weight protein(s) present in culture filtrate of LC-1, which may be tested further to target M. tuberculosis. The heat and pH stability of these proteins add to their characteristics as therapeutic proteins and may contribute to their long shelf life. LC-1 being a human commensal can be tested in future for its potential as a probiotic to treat tuberculosis.
Combinatorial approach of vitamin C derivative and anti-HIV drug-darunavir against SARS-CoV-2 - CONCLUSIONS: Overall, the present work suggests that bioinformatics tools are suitable for recognizing potential candidates in an emergency, and herein the selected ‘anti-HIV-drug-vitamin c derivatives’ cocktails may potential-cum- fewer toxic regimens against COVID-19 treatment.
UV-4B potently inhibits replication of multiple SARS-CoV-2 strains in clinically relevant human cell lines - CONCLUSIONS: These results highlight UV-4B’s antiviral potential against several strains of SARS-CoV-2.
COVID-19 and Preeclampsia: Overlapping Features in Pregnancy - Coronavirus disease 2019 (COVID-19) is a global respiratory disease with unique features that have placed all medical professionals in an alarming situation. Preeclampsia is a hypertensive disorder of pregnancy affecting 8%-10% of India’s pregnant population. Assuming that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) enters host cells through the angiotensin-converting enzyme 2 (ACE2) receptor, the resulting symptoms are due to vasoconstriction, caused by disturbances in the…
In-silico investigation of some recent natural compounds for their potential use against SARS-CoV-2: a DFT, molecular docking and molecular dynamics study - Since its first appearance in December 2019, SARS-CoV-2 has infected many people all over the world, causing serious health problems in many people and causing many deaths, but no specific drug has been developed yet. SARS-CoV-2 main protease (SARS-CoV-2 M^(pro)) has an important role in viral replication and transcription, so inhibition of this enzyme is proposed to be an attractive route for the treatment of COVID-19. Natural compounds have been used in the treatment of many diseases…
Antiviral and anti-inflammatory drugs to combat COVID-19: Effects on cardiac ion channels and risk of ventricular arrhythmias - Introduction: Drugs with no indication for the treatment of cardiovascular diseases (e.g., drugs employed to treat COVID-19) can increase the risk of arrhythmias. Of interest, a six-fold increase in the number of arrhythmic events was reported in patients with severe COVID-19. In this study, we reviewed (i) the pro-arrhythmic action of drugs given to patients with COVID-19 infection, and (ii) the effects of inflammatory cytokines on cardiac ion channels and possible generation of arrhythmias….
Inactivation of plant and animal viruses by proanthocyanidins from Alpinia zerumbet extract - Alpinia zerumbet (Pers.) B.L. Burtt and R.M. Smith belongs to the Alpinia genus in the Zingiberaceae family. In East Asia, Alpinia zerumbet has been widely used as food and traditional medicine. Previously, we identified proanthocyanidins (PACs), an anti-plant-virus molecule in A. zerumbet, using Nicotiana benthamiana and tomato mosaic virus (ToMV). Here, we found that PACs from A. zerumbet, apple, and green tea effectively inhibited ToMV infection. Additionally, the PACs from A. zerumbet…
IDENTIFICATION AND ALARM SYSTEM FOR FACIAL CORONA MASK USING CNN BASED IMAGE PROCESSING - tThe covid-19 epidemic is the world’s largest wake-up call for people to pay attention to their own and society’s health. One thing to keep in mind is that there is a segment of the population that has been exposed to the covid-19 virus and has generated antibodies without developing any significant illnesses and is continuing to be healthy. This indicates that a significant section of the population, even excluding the elderly, lacks the necessary bodily immunity to combat a Viral infection. As terrible as covid-19 is on a global scale, developing personal health standards and preventative measures for any pathogenic virus as a community would have spared many lives. In’this work, a camera is combined with an image processing system to recognise facial masks, which may be improved in a variety of ways. First and foremost, this method is meant to identify masks on a single person’s face. While this method is efficient in identifying someone has a mask, it does not ensure that they will wear it all of the time. The most effective update for this task is to install a camera with a wide field of view so that many individuals can be seen in the frame, and the faces of those who aren’t wearing markings can be identified, as well as the number of people and the timing. - link
ANTIMICROBIAL SANITIZING FORMULATION - An antimicrobial sanitizing formulation, comprising, i) isopropyl alcohol in the range of 0.1%- 80% w/w, ii) an emollient in the range of 0.1%-15% w/w, iii) hydrogen peroxide in the range of 0.1 0.13% w/w, iv) citric acid in the range of 0.1% to 2.0% w/w, v) silver nitrate in the range of 0.1% to 0.5% w/w, and vi) a fragrance imparting agent in the range of 0.1% to 2.0% w/w. - link
A HEALTH BAND WITH A BIOMETRIC MODULE AND WORKING METHOD THEREOF - The present invention discloses a health band with a biometric module and method thereof. The assembly includes, but not limited to, a plurality of sensors configured to gather health data associated with a predefined symptom of a medical condition of a user; a memory unit configured to store the data and an interface, which is configured to determine the medical condition using the data;a processing unit configured to execute the application; and a notification facility configured to provide a notification upon receiving from the interface an instruction associated with the notification, wherein the notification is associated with a drug reminder and the like. - link
RNA 검출 방법 - 본 발명은 RNA의 분석 및 검출 방법에 관한 것이다. 특히, 본 발명은 특히, 본 발명은 짧은 염기서열의 RNA까지 분석이 가능하면서도 높은 민감도 및 정확도로 정량적 검출까지 가능하여 감염증, 암 등 여러 질환의 진단 용도로도 널리 활용될 수 있다. - link
REUNION OF PHOTOTHERMAL THERAPY WITH MXENE ADSORBED UREMIC TOXINS AND CYTOKINES: A SHILED FOR COVID-19 PATENTS - The COVID-19 pandemic has created havoc throughout the world. The disease has proved to be more fatalfor patients having comorbidities like diabetics, lungs and kidney infections, etc. In the case of COVID-19 patientsI having kidney injury, the. removal of uremic toxins from the blood is hindered and there is a rapid surge in the levelj of cytokine hormone resulting in the death of the patient in a short interval of time. To resolve this issue,iI; researchers have examined that the immediate removal of these toxins can improve the condition of the patient to a |greater extent. Studies have also found the presence of SARS CoV-2 viral RNAs in the blood of COVID-19patients, which risks their life as well as impacts the blood transfusion process, especially in the case ofasymptomatic patients. Hence it is required to control the surge of cytokines and uremic toxins as well as disinfectthe blood of the patient from the virus. MXenes, having a foam-like porous structure and hydrophilic negativesurface functionalization have greater adsorption efficiency as well as superior photothermal activity. Utilizingthese properties of MXenes, the MXene membranes can be used in the dialyzer that can help in the efficient andBiuick removal of the uremic toxins, cytokines, and other impurities from the blood. Along with this the greaterTJAdsorption efficiency of MXenes to amino acids result in the trapping of the SARS CoV-2 viruses on the surface J)3>f the MXene. Many researchers as well as the WHO have proved the efficient reduction of the viral copy numbersjjvith the increase of temperature. Hence, followed by the trapping of the viruses, the implementation of"Zphotothermal Therapy can result in the inactivation and denaturation of the viruses and their respective viral RNAsBJlby the produced heat. The same process can be repeated several times to get better results. This whole process canr>oQ-esult in impurity-free and infection-free blood, that can be returned back to the body of the patient or can be!— I Sitilized for the blood transfusion process without any risk of infection.IM - link
REDUCING AND STOPPING OXYGEN WASTAGE IN HOSPITAL - In an aspect, the present invention discloses a system (200) for prevention and reduction of oxygen wastage from oxygen mask (202). The system (200) includes the oxygen mask (202) having straps; a tension sensor (204), the tension sensor being sensitive towards tension produced in the straps as the oxygen gets leakage through sides of the mask (202); a processor configured in alignment with the tension sensor (204); and a buzzer (206) in alignment with processor. - link
编码SARS-COV-2病毒C.37突变株抗原的DNA分子、DNA疫苗及应用 - 本发明涉及生物技术领域，具体而言，提供了一种编码SARS‑COV‑2病毒C.37突变株抗原的DNA分子、DNA疫苗及应用。本发明提供的SEQ ID NO：1核酸序列在真核表达系统中能够高效转录和表达，而且具有免疫原性，表现在体液免疫和细胞免疫应答中，以此作为活性成分的核酸疫苗同样具有良好的免疫原性。 - link
SARS-COV-2病毒B.1.617.2突变株DNA疫苗及应用 - 本发明涉及生物技术领域，具体而言，提供了一种编码SARS‑COV‑2病毒B.1.617.2突变株抗原的DNA分子、DNA疫苗及应用。本发明提供的SEQ ID NO：1核酸序列在真核表达系统中能够高效转录和表达，而且具有免疫原性，表现在体液免疫和细胞免疫应答中，以此作为活性成分的核酸疫苗同样具有良好的免疫原性。 - link
Hung Thanh Phan COVID-19 NEW SOLUTION - - link
A METHOD TO REVEAL MOTIF PATTERNS OF COVID-19 USING MULTIPLE SEQUENCE ALIGNMENT - This present invention consists of different levels of computation and work in a pipeline manner i.e., input of one will be output of another and it is sequential process. Input data given in form of nucleotide sequence (DNA) of different COVID-19 patients (1). Using these nucleotide sequence perform mutation if possible and arrange them in a sequential order (2). Arrange number of nucleotide sequences of different patients in row wise and also compute number of characters in each row. (3). Compute frequency of occurrence of character in column wise and create a matrix having 4 rows and maximum sequence length will be the column size (4). Find the character like A, T, C, and G which one has maximum score and similarly find for each column to produce a final sequence (5). - link