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Corona Virus Disease 2019 (COVID-19) is a deadly virus named after severe acute respiratory syndrome coronavirus 2; it affects the respiratory system of the human and sometimes leads to death. The COVID-19 mainly attacks the person with previous lung diseases; the major cause of lung diseases is the exposure to nitrogen dioxide (NO2) for a longer duration. NO2 is a gaseous air pollutant caused as an outcome of the vehicles, industrial smoke and other combustion processes. Exposure of NO2 for long-term leads to the risk of respiratory and cardiovascular diseases and sometimes leads to fatality. This paper aims to analyze the NO2 level impact in India during pre- and post-COVID-19 lockdown. The study also examines the relationship between the fatality rate of humans because of exposure to NO2 and COVID-19.

Spatial analysis has been conducted in India based on the mortality rate caused by the COVID-19 using the data obtained through Internet of Medical things. Meanwhile, the mortality rate because of the exposure of NO2 has been conducted in India to analyze the relationship. Further, NO2 level assessment is carried out using Copernicus Sentinel-5P satellite data. Moreover, aerosol optical depth analysis has been carried out based on NASA’s Earth Observing System data.

The results indicate that NO2 level has dropped 20-year low because of the COVID-19 lockdown. The results also determine that the mortality rate because of long-time exposure to NO2 is higher than COVID-19 and the mortality rate because of COVID-19 may be a circumlocutory effect owing to the inhalation of NO2.

Using the proposed approach, the COVID-19 spread can be identified by knowing the air pollution in major cities. The research also identifies that COVID-19 may have an effect because of the inhalation of NO2, which can severe the COVID-19 in the human body.

The present study aims to measure the global research landscape on coronavirus indexed in the Web of Science from 1989 to 2020. The study examines growth rates, authorship trends, institutional productivity, collaborative networks and prominent authors, institutions and countries.

The research literature on coronavirus published globally and indexed in the Web of Science core collection was retrieved using the term “Coronavirus” and its related and synonymous terms (e.g. COVID-19, SARS-COV, SARS-COV-2 and severe acute respiratory syndrome coronavirus) as per the Medical List of Subject Headings. A total of 5,625 publications were retrieved; however, the study was restricted to articles only (i.e. 4,471), and other document types were excluded. Quantitative and visualization techniques were used for data analysis and interpretation. VOSViewer software was employed to map collaborative networks of authors, institutions and countries.

A total of 4,471 articles have been published on coronavirus by 99 countries of the world with the maximum contribution from the USA, followed by the People's Republic of China. The United States, China, Canada, Netherlands and Germany are the front runners in the collaborative network and form strong sub-networks with other countries as well. More than 1,000 institutions collaborate in the field of coronavirus research among 99 contributing countries. The authorship pattern shows that 97.5% of publications are contributed by authors in collaboration in which 77.5% of publications are contributed by four or more than four authors. The range between degree of collaboration (DC) varies from 0.89 in 1993 to 1 in 2000 with an average of 0.96 from 1989 to 2020. The results confirm that the coronavirus research is carried out in teamwork at the individual, institutional and global levels with high magnitude and density of collaboration. The relative growth of the literature has shown inconsistency as a decreasing trend has been observed from 2007 onwards, thereby increasing the doubling time from 4.2 in the first ten years to 17.3 in the last ten years.

The study is limited to the publications indexed in the Web of Science; the findings cannot be generalized across other databases.

The results of the study may help medical scientists to identify the progress in COVID-19 research. Besdies, it will help to identify the prolific authors, institutions and countries in the development of research.

The current COVID-19 pandemic poses urgent and prolonged threats to the health and well-being of the population worldwide. It has not only attacked the health of the people but the economy of nations as well. Therefore, it is feasible to know the research landscape of the disease to conquer the problem.

The current COVID-19 pandemic poses urgent and prolonged threats to the health and well-being of the population worldwide. It has not only attacked the health of the people but also the economy of nations as well. Therefore, it is feasible to know the research landscape of the disease to conquer the problem.

Using science mapping analysis approach and co-word analysis, the present study explores and visualizes research fields and thematic evolution of the coronavirus. Based on this method, one can get a picture of the real content of the themes in the mentioned thematic area and identify the main minor and emerging themes.

This study was conducted based on co-word science mapping analysis under a longitudinal study (from 1988 to 2020). The collection of documents in this study was further divided into three subperiods: 1988–1998, 1999–2009 and 2010–2020. In order to perform science mapping analysis based on co-word bibliographic networks, SciMAT was utilized as a bibliometric tool. Moreover, WoS, PubMed and Scopus bibliographic databases were used to download all records.

In this study, strategic diagrams were demonstrated for the coronavirus research for a chronological period to assess the most relevant themes. Each diagram depended on the sum of documents linked to each research topic. In the first period (1988–1998), the most centralizations were on virology and evaluation of coronavirus structure and its structural and nonstructural proteins. In the second period (1999–2009), with due attention to high population density in eastern Asia and the increasing number of people affected with the new generation of coronavirus (named severe acute respiratory syndrome virus or SARS virus), publications have been concentrated on “antiviral activity.” In the third period (2010–2020), there was a tendency to investigate clinical syndromes, and most of the publications and citations were about hot topics like “severe acute respiratory syndrome,” “coronavirus” and “respiratory tract disease.” Scientometric analysis of the field of coronavirus can be regarded as a roadmap for future research and policymaking in this important area.

The originality of this research can be considered in two ways. First, the strategic diagrams of coronavirus are drawn in four thematic areas including motor cluster, basic and transversal cluster, highly developed cluster and emerging and declining cluster. Second, COVID-19 is mentioned as a hot topic of research.

This paper aims to give an overview of emerging issues relating to the management of patients in custody during the COVID-19 outbreak in France.

During custody in France, a medical consultation is provided for any patient who requests it. In the Paris area, this consultation is carried out by a practitioner in forensic medicine, based in a general hospital. Usually, most medical consultations for patients in custody take place directly in police stations. With the COVID-19 outbreak, the authors chose to suspend this activity, asking law enforcement to bring patients directly to their hospitals. Patients presenting with severe infections or indicative symptoms of the severe acute respiratory syndrome Coronavirus 2 infection and a comorbidity are tested for COVID-19. Such patients remain hospitalized until results of the test are received. If the result is positive, they are hospitalized for the length of their custody. If sent to prison, they are transferred to a medical facility in detention.

From the onset of the outbreak, the authors observed increased pressure from law enforcement to obtain medical information. According to the French Code of Medical Ethics, no medical information should be disclosed regarding the authors’ patients’ medical situations. The authors are also concerned about sending a potentially infected patient back to a police station, to prison or to his/her home.

This paper provides a snapshot of issues relating to the management of patients in custody during the COVID-19 outbreak in France. Unfortunately, the current situation in France does not permit a wider range of testing for the specified population in this paper.

COVID-19) is the present global problem. The potential for food borne transmission of COVID-19 becomes a present discussed public health issue. At present, there are many reports on the food contamination with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is no doubt that the viral contamination in food is possible. The authors summarize and discuss on food contamination, food safety and COVID-19 outbreak.

The authors give a commentary on the available data on food contamination during COVID-19 outbreak. Based on basic food safety principles, the authors build an argument on available recommendation regarding food safety during the COVID-19 outbreak.

It still lacks in many details of food safety during COVID-19 pandemic. Public health personnel usually refer to classical food safety principles for recommending general people about food safety, but it still lacks for updated specific data on COVID-19. The present commentary gives some few ideas and it is necessary to have further specific research on this specific issue.

This is an original commentary regarding the new contemporary problem on food contamination, food safety and COVID-19 outbreak.

In this paper, the authors present insights and findings drawn from the authors’ experiences of containing a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak in a large prison in northern Italy.Within penitentiaries, close-quarter living is ripe terrain for outbreaks of disease among detainees and staff. If left unchecked, these outbreaks can easily spill over the prison walls to threaten the general public. Moreover, these risks are heightened by preexisting environmental conditions, especially overcrowding. It is thus paramount to establish effective protocols for prevention, early detection and outbreak management. The purpose of this article is to document a strategy that been at least partially successful in reducing the damage that could potentially be caused by a sustained SARS-CoV-2 outbreak within a correctional facility.

The authors conducted a retrospective analysis on patients’ and health-care workers’ medical records to obtain demographic and clinical information. Descriptive data analysis was then carried out.

In total, the authors tested 453 people with oropharyngeal swabs from March 15, 2020, to June 30, 2020. Of these people, 58 were positive and 395 were negative, with a prevalence of 12.8%.Of the 453 patients, 60 were health workers: 24 tested positive for SARS-CoV2 ribonucleic acid (RNA); 18 developed symptoms; and three needed hospitalization.Among patients in detention, 34 resulted positive for SARS-CoV-2 RNA. Two were hospitalized and later died. Both had severe preexisting conditions; they were aged 76 and 59 years old, respectively.

In this study, the authors describe the design and effective implementation of prevention and containment measures against SARS-CoV-2 within the walls of a correctional facility. The authors describe how they rapidly created clean confinement sections to isolate cases in an environment designed for security at the expense of virus containment and how educational efforts have played a vital role in their strategy.

The main purpose of this study is to make a comparative evaluation of the impacts of previous outbreaks and coronavirus disease 2019 (COVID-19) on the tourism industry. COVID-19 appears to have disrupted all memorizations about epidemics ever seen. Nobody has anticipated that the outbreak in late December will spread rapidly across the world, be fatal and turn the world economy upside down. Severe acute respiratory syndrome, Ebola, Middle East respiratory syndrome and others caused limited losses in a limited geography, thus similar behaviors were expected at first in COVID-19. But it was not so. Today, people continue to lose their lives and experience economic difficulties. One of the most important distressed industries is undoubtedly tourism.

This study is a literature review. In this review, a comparative evaluation between the impact of previous outbreaks and COVID-19 on the tourism industry has been made based on statistics and previous research studies.

The information and figures obtained show that COVID-19 and previous outbreaks have such significant differences that cannot be compared. COVID-19 has been one of the worst to live in terms of spreading speed, the geography where it spreads, loss of lives and negative effects in the whole area.

It is noteworthy that COVID-19 is very severe in terms of death cases and also its impacts on the economy compared to other pandemics. It remains to be argued that COVID-19 can also be a reference in terms of possible new outbreaks in the future, and is an effective actor in determining future strategies.

This study aims to use financial stability and health facilities of countries, to cluster them for making a more consensus environment for manifesting the status of Covid-19 in a justifiable manner. The scarcity of the categorisation of the countries of the world in a common platform, and the requirement of manifesting the pandemic status such as Covid-19 in a justifiable manner create the demanding requirement. This study mainly focusses on assisting to generate a liable manifesto to criticise the span of viral infection of the severe acute respiratory syndrome coronavirus-2 over the globe.

Data for this study has been gathered from official websites of the World Bank, and the world in data. The Louvain clustering method has been used to cluster the countries based on their financial strength and health facilities. The resulted clusters are visualised using Silhouette plots. The anomalies of the clusters had been used to quantify the pandemic situation. The status of Covid-19 has been manifested with the time series analysis through python programming.

The countries of the world have been clustered into seven, where developed countries divided into three clusters and the countries with transition economies and developing clustered together into four clusters. The time series analysis of recognised anomalies of the clusters assist to monitor the government responses and analyse the efficiency of used safety measures against the pandemic.

This study’s resulted clusters are highly valuable as a division of countries of the whole world for evaluating the health systems and for the regional levels. Further, the results of time series analysis are beneficial in monitoring the government responses and analysing the efficiency of used safety measures against the pandemic.

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has infected millions of people worldwide. Individuals with intellectual disability are at a disproportionate risk of mortality, given the health inequalities they experience. This puts a significant burden of responsibility on staff who support these individuals. Consequently, this study aims to establish a baseline of the well-being of staff working in intellectual disability services in Ireland during the COVID-19 pandemic.

An online survey was carried out using the Copenhagen Burnout Inventory, a brief measure of depression (Patient Health Questionnaire-9) and a brief measure of anxiety (General Anxiety Disorder-7).

In total, 285 staff in the Republic of Ireland completed the survey. These staff reported moderate levels of personal and work-related burnout and mild levels of anxiety and depression. Higher mean scores were recorded across scales from staff who worked in independent living settings and from staff who supported individuals with challenging behaviour.

This study, an audit, provides initial data on the well-being of staff working with individuals with intellectual disability in Ireland during the COVID-19 pandemic. It highlights that employers need to consider staff well-being, given the levels of personal and work-related burnout, and anxiety and depression that were found. This is particularly true for staff who work in independent living settings and with adults with challenging behaviour. Future research should focus on proactive strategies for improving staff well-being in the short term, given the current resurgence of COVID-19 in Ireland.

This review aims to evaluate the evidence of the impact of COVID-19 on patients with stroke.

The author carried out a review following the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for a review article. PubMed, the Web of Science and CINAHL Plus Full Text were searched from January 2019 to October 2020. Twenty-three studies were included in the final review, incorporating a total of 9,819 stroke patients.

The most commonly reported effects of COVID-19 on patients with stroke were delayed stroke treatment (n = 14 studies), thrombotic, blood and immune system complications (n = 8), increased risk of stroke severity and disability (n = 6), increased mortality (n = 8), elevated D-dimer levels (n = 4), comorbidity and acute respiratory distress syndrome (ARDS) (n = 6) and prolonged hospitalization (n = 4).

COVID-19 has affected patients with stroke in various ways, either directly or indirectly, prior to admission or in hospital. The findings should help guide further investigation of the long-term impact of COVID-19 on patients with stroke and help to establish proper guidelines for the provision of efficient treatment for affected patients.