Summary

On 11 March 2020, the World Health Organization declared COVID-19 a global pandemic, and the disease now affects nearly every country and region. Caused by SARS-CoV-2, COVID-19 continues nearly 18 months later to present significant challenges to health systems and public health in both hemispheres, as well as the economies of every country. The morbidity and mortality of the infection caused by SARS-CoV-2 has been significant, and various waves of disease outbreaks initially overwhelmed many hospitals and clinics and continue to do so in many countries. This influences everyone, and public health countermeasures have been dramatic in terms of their impact on employment, social systems, and mental health. This entry collection aims to gather diverse fields about COVID-19, including in epidemiology, public health, medicine, genetics, systems biology, informatics, data science, engineering, sociology, anthropology, nursing, environmental studies, statistics, and psychology.

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Entries
Topic Review
Paternal Leadership on Employee Retention during COVID-19
The leadership style that is most appropriate for the given circumstance will determine whether or not a leader is successful. It means what great leaders should do while working with a diverse workforce. They should be emotionally intelligent in order to understand their team members and modify their leadership style in order to achieve the best out of them. Employee engagement in the workplace is crucial for firms, but different factors can keep employees motivated. Work engagement activities, particularly those supported by the human resource department, have typically been observed as the primary factors that motivate employees. The COVID-19 pandemic has brought about a number of adjustments.
  • 646
  • 11 Nov 2022
Topic Review
Consequences of Geopolitics and COVID-19 on Economic Performance
The COVID-19 crisis and the war between Russia and Ukraine affects the world economy badly. The western countries’ economic sanctions on Russia and the Russian government’s reverse sanctions on western countries create pressure on the world economy. Countries over the world registered less economic growth, high inflation rate, and high government debt in 2022 compared to the fiscal period of 2019–2021. The emerging economies and developing countries of Europe were badly affected by the crisis as the level of inflation rate hit 27 percent and the economic growth of the region registered a negative 2.9 percent. It also found rising interest rates, exchange rate volatility, risk of stagflation, and rising energy prices are the short-term risks to economies. The issue of sustainable development goals and green aspects, risk of hyperinflation, and risk of economic recession are the long-term strategic challenges or risks to economies. Bailout and debt relief were found to be necessary for those countries badly affected by the crisis. Policymakers should facilitate financial policies and should switch from general assistance to targeted support of viable enterprises. 
  • 613
  • 11 Nov 2022
Topic Review
Vulnerabilities That Spread Systemically to Cause Complications
COVID-19 and long COVID-19 vulnerabilities may be caused indirectly by albumin binding deficiency (ABD), which can be corrected by the correct administration of human serum albumin(HSA). The liver is the primary site of nutrient regulation and fluid volume maintenance; control of both is by changes to albumin concentration. In healthy subjects, the HSA lymphatic nutrient pump(HSALNP) ensures continual pumping of nutrients from the liver and that nutrients are appropriately distributed to organs. Nutrients are delivered to cells according to the availability of binding to HSA.The HSALNP, therefore, maintains the correct nutrient and colloidal pressure balance in all tissues independently. In unhealthy tissues, following COVID-19 infection, the passage of HSA/nutrients through the interstitial spaces and lymph will be impeded. Fluid therapy into the periphery leads to the dilution of essential nutrients attached to the protein carriers such as albumin. The levels of albumin being charged by the liver with nutrients is critical in maintaining immune stability by maintaining nutrient support and colloidal pressure of the cellular structures. The site of HSA binding by the liver is of great importance, and direct infusion of albumin into the hepatic portal vein is the most appropriate method of maintaining colloid pressure and cellular nutrient levels.
  • 389
  • 10 Nov 2022
Topic Review
Coronavirus
Coronaviruses are indeed a huge family of viruses that are found both in humans and animals. Seven different types have been identified, including the ones that caused COVID-19 and the SARS and MERS illnesses.
  • 430
  • 09 Nov 2022
Topic Review
Gut as an Alternative Entry Route for SARS-CoV-2
The gut has been proposed as a potential alternative entry route for SARS-CoV-2. This was mainly based on the high levels of SARS-CoV-2 receptor expressed in the gastrointestinal (GI) tract, the observations of GI disorders (such as diarrhea) in some COVID-19 patients and the detection of SARS-CoV-2 RNA in feces. SARS-CoV-2 can productively infect enterocytes, damaging the intestinal barrier and contributing to inflammatory response, which might lead to GI manifestations, including diarrhea.
  • 399
  • 08 Nov 2022
Topic Review
The COVID-19 and Autism-Spectrum Experience (CASE) Parent Survey
The COVID-19 outbreak represented a challenging period, especially for people suffering from pre-existing mental health related issues. Individuals with Autism Spectrum Disorders (ASD) are among this patient population and thus particularly at risk due to their vulnerability and difficulties with adapting to changes and complex situations. The CASE parent survey was developed by a group of physicians, psychologists, and child life specialists, in order to assess the impact of the COVID-19 emergency on children and adolescents with ASD. It consists of 40 questions (20 yes/no questions, 18 multiple choice questions and 2 open-response questions), subdivided into three categories investigating Autism Spectrum Disorder's subjects socio-demographic and clinical characteristics, the impact the COVID-19 outbreak had on their physical and mental wellbeing, and the needs to deal with the ongoing emergency.
  • 592
  • 08 Nov 2022
Topic Review
Microalgae in Therapeutic Glycoproteins against SARS-CoV-2 Variants
SARS-CoV-2 mainly targets the respiratory tract, resulting in rapid and severe respiratory symptoms and lung failure, as well as some clinical symptoms such as fever, dry cough, fatigue, and dyspnea. In addition, studies reported gastrointestinal disturbances such as loss of appetite followed by diarrhea, nausea, and abdominal pain in the infected patients. Indeed, SARS-CoV-2 can also acutely replicate in the mucosa of the patient’s small intestine and excrete its RNA into the patient’s stool. In addition to these manifestations, many patients have exhibited a variety of symptoms (e.g., olfactory and gustatory disturbances, anosmia, headache, dysgeusia, confusion, and fatigue), which could be attributed to cranial nerve involvement. SARS-CoV-2, as with other coronaviruses, may initially invade peripheral-nerve endings and then progress regularly to the central nervous system via synaptic-connected junctions. Microalgae are eukaryotic, microscopic, and photosynthetic lower organisms that have recently been considered a more promising platform for the production of various biologics, especially complex glycosylated proteins.
  • 445
  • 07 Nov 2022
Topic Review
SARS-CoV-2 and Cancer Cross-Talk
Since the pandemic’s onset, a growing population of individuals has recovered from SARS-CoV-2 infection and its long-term effects in some of the convalescents are gradually being reported. Although the precise etiopathogenesis of post-acute COVID-19 sequelae (PACS) remains elusive, the mainly accepted rationale is that SARS-CoV-2 exerts long-lasting immunomodulatory effects, promotes chronic low-grade inflammation, and causes irreversible tissue damage. Several viruses have been causally linked to human oncogenesis, whereas chronic inflammation and immune escape are thought to be the leading oncogenic mechanisms. Excessive cytokine release, impaired T-cell responses, aberrant activation of regulatory signaling pathways (e.g., JAK-STAT, MAPK, NF-kB), and tissue damage, hallmarks of COVID-19 disease course, are also present in the tumor microenvironment. Therefore, the intersection of COVID-19 and cancer is partially recognized and the long-term effects of the virus on oncogenesis and cancer progression have not been explored yet.
  • 418
  • 03 Nov 2022
Topic Review
Advances in COVID-19 Treatment
COVID-19, which emerged in December 2019, was declared a global pandemic by the World Health Organization (WHO) in March 2020. The disease was caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It has caused millions of deaths worldwide and caused social and economic disruption. While clinical trials on therapeutic drugs are going on in an Accelerating COVID-19 Therapeutic Interventions and Vaccines (ACTIV) public–private partnership collaboration, current therapeutic approaches and options to counter COVID-19 remain few. Therapeutic drugs include the FDA-approved antiviral drugs, Remdesivir, and an immune modulator, Baricitinib. Hence, therapeutic approaches and alternatives for COVID-19 treatment need to be broadened. 
  • 471
  • 02 Nov 2022
Topic Review
Long COVID
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was first detected in China in a group of patients suffering from pneumonia. It was established as the causative agent for COVID-19, the virus that led to the ongoing pandemic, and the recently raised threat of long COVID-19. Even though some cases can progress to life-threatening pneumonia, most individuals infected with the virus suffer from mild to moderate illness.
  • 396
  • 31 Oct 2022
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