COVID-19 Research: المرسلات الحديثة
السجلات المعروضة 581 -- 600 من 834
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QCovSML: A reliable COVID-19 detection system using CBC biomarkers by a stacking machine learning model
( Elsevier , 2022 , Article)The reverse transcription-polymerase chain reaction (RT-PCR) test is considered the current gold standard for the detection of coronavirus disease (COVID-19), although it suffers from some shortcomings, namely comparatively ... -
Pre-symptomatic and asymptomatic transmission of COVID-19: Implications for control measures in Qatar
( QSCIENCE , 2021 , Article)Public health control measures for communicable diseases are often based on the identification of symptomatic cases. However, emerging epidemiological evidence demonstrates the role of presymptomatic and asymptomatic ... -
The prevalence of adaptive immunity to COVID-19 and reinfection after recovery - a comprehensive systematic review and meta-analysis.
( Taylor & Francis , 2022 , Article)This study aims to estimate the prevalence and longevity of detectable SARS-CoV-2 antibodies and T and B memory cells after recovery. In addition, the prevalence of COVID-19 reinfection and the preventive efficacy of ... -
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar’s experience
( International Society of Global Health , 2022 , Article)Background: The effective reproduction number, Rt, is a tool to track and understand epidemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset ... -
LABORATORIES PREPAREDNESS IN RESPONSE TO COVID 19 PANDEMIC IN QATAR STRATEGIC PLANNING AND EMERGENCY SUPPLY CHAIN MANAGEMENT
(2022 , Professional Masters Project)Introduction: the purpose of this study is to investigate the preparedness of laboratories in Qatar on provisions of essential supplies in pandemic through assesses Supply Chain Management capabilities and its resilience ... -
FACTORS THAT IMPACT USERS' SATISFACTION WHEN USING DIGITAL CONTACT TRACING APP: THE CASE OF EHTERAZ
(2022 , Master Thesis)This research aims to investigate the user satisfaction of Ehteraz in Qatar as a unique case study due to the mandatory requirement to download and present to authorities. Individuals in Qatar are excluded from accessing ... -
SARS-COV-2 REINFECTION
(2022 , Master Thesis)Background: SARS-CoV-2 reinfection investigation is on rise, and despite the fact that reviews and studies have attempted to study and define reinfection, none have compared it with all documented conditions in the literature. ... -
INTELLIGENT AGENT-BASED 3D SIMULATION OF COVID-19 FOR ANALYSIS OF SOCIAL CONTROL MEASURES
(2022 , Master Thesis)The aim of this research is to model and simulate the recent and ongoing COVID-19 pandemic in terms of virus contagiousness among mixed groups of patients, carriers, and unaffected populations. The focus is on closed ... -
Observations on Food Consumption Behaviors During the COVID-19 Pandemic in Oman
( Frontiers Media , 2022 , Article)This paper aims to study the perceptions of the impacts of the COVID-19 pandemic on behaviors related to diet and food shopping on a sample of 356 adults in Oman. The study is based on the results of an Arabic-language ... -
Nutrition Management in COVID-19 Quarantine: Hospital-Based Study
( Cambridge University Press , 2021 , Article)Background: This hospital-based study aimed to evaluate the nutritional status and dietary habits for COVID-19 patients, the amount of nutrients provided to the patients in the hospital and to detect the predictors of ... -
Metabolic Signatures of Type 2 Diabetes Mellitus and Hypertension in COVID-19 Patients With Different Disease Severity.
( Frontiers Media , 2022 , Article)Increased COVID-19 disease severity is higher among patients with type 2 diabetes mellitus and hypertension. However, the metabolic pathways underlying this association are not fully characterized. This study aims to ... -
Relative infectiousness of SARS-CoV-2 vaccine breakthrough infections, reinfections, and primary infections.
( Springer , 2022 , Article)SARS-CoV-2 breakthrough infections in vaccinated individuals and in those who had a prior infection have been observed globally, but the transmission potential of these infections is unknown. The RT-qPCR cycle threshold ... -
Laboring to communicate: Use of migrant languages in COVID-19 awareness campaign in Qatar
( De Gruyter , 2021 , Article)This study examines the communication strategies employed by Qatar's government in dealing with the COVID-19 pandemic. The study contributes to a growing body of work on the sociolinguistics of crisis communication. We ... -
Persistent viral infectivity after 27 days from COVID-19 symptoms onset
( BMJ Publishing Group , 2021 , Article)The persistence of SARS-CoV- 2 in pharyngeal swabs belonging to patients affected by COVID-19 is not a rare occurrence. Indeed, the viral load determined through real-time reverse-transcriptase PCR (rRT-PCR) test peaks at ... -
Neck circumference predicts mortality in hospitalized COVID-19 patients
( MDPI , 2021 , Article)We aimed to determine whether neck circumference predicts mortality among hospitalized COVID-19 patients with respiratory failure. We performed a prospective multicenter (Italy and Brasil) study carried out from March to ... -
Evaluation of residual infectivity after SARS-CoV-2 aerosol transmission in a controlled laboratory setting
( MDPI , 2021 , Article)Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is mainly transmitted through respiratory droplets, aerosols, or direct contact with fomites from an infected subject. It has been reported that SARS-CoV-2 ... -
Molecular detection of SARS-CoV-2 from indoor air samples in environmental monitoring needs adequate temporal coverage and infectivity assessment
( Elsevier , 2021 , Article)The relevance of airborne exposure to SARS-CoV-2 in indoor environments is a matter of research and debate, with special importance for healthcare low-risk settings. Experimental approaches to the bioaerosol sampling are ... -
SARS-CoV-2 Short-Time Infection Produces Relevant Cytopathic Effects in Vero E6 Cell Line.
( MDPI , 2021 , Article)Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is mainly transmitted through respiratory droplets from positive subjects to susceptible hosts or by direct contact with an infected individual. Our study ... -
Blue photobiomodulation LED therapy impacts SARS-CoV-2 by limiting its replication in Vero cells
( Wiley , 2021 , Other)The study of any intervention able to counteract SARS-CoV-2 pandemic is considerably envisaged. It was previously shown, in in vitro models of infections, that the LED blue light is able to decrease the viral load of HSV-1 ... -
Dietary Patterns and Changes in Weight Status Among Chinese Men and Women During the COVID-19 Pandemic.
( Frontiers Media , 2021 , Article)To identify dietary patterns during the coronavirus disease-2019 (COVID-19) pandemic and to examine their association with changes in weight status in the Chinese population. The 2020 China COVID-19 cross-sectional survey ...
