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Abstract:An optimal penetration factor was proposed. • Penetration mechanism was further explored. • The inevitability of particles detaching and re-entering after capture was proved. • Time correction under current experimental conditions is of little significance.
“…Finally, fourteen studies were eligible and included in this SR based on the inclusion/exclusion criteria, as illustrated in Fig. 1 ( WANG and YONEDA, 2020 , BUONANNO et al, 2020 , VUORINEN et al, 2020 , STADNYTSKYI et al, 2020 , CHIA et al, 2020 , FARIDI et al, 2020 , KENARKOOHI et al, 2020 , SANTARPIA et al, 2020a , SANTARPIA et al, 2020b , LIU et al, 2020 , Orenes-Piñero et al, 2020 , KIM et al, 2020 , MASOUMBEIGI et al, 2020 , RAZZINI et al (2020) ) . Fig.…”
Section: Resultsmentioning
confidence: 99%
“…These studies were conducted in Iran (n = 3), USA (n = 2), China (n = 1), Spain (n = 1), Singapore (n = 1), Philadelphia (n = 1), Korea (n = 1) and Italy (n = 1). Of the 14 records, three studies examined the main hypothesis of the present SR based on the simulation method ( WANG and YONEDA, 2020 , BUONANNO et al, 2020 , VUORINEN et al, 2020 ). These studies were conducted in Japan (n = 1), Italy (n = 1), and Finland (n = 1).…”
Section: Resultsmentioning
confidence: 99%
“… These data support the recommendation to carry out frequent disinfection of the surfaces of hospitalized patients. ( WANG and YONEDA, 2020 ), Japan Determination of the optimal penetration factor for evaluating the invasion process of aerosols Simulation R N N The penetration mechanism was explored by the proposed optimal penetration factor and the error analysis of each method. They also provided a rapid and accurate assessment method for preventing and controlling the spread of the epidemic.…”
At the end of December 2019, the rapid spread of the COVID-19 (SARS-CoV-2) disease and, subsequently, deaths around the world, lead to the declaration of the pandemic situation in the world. At the beginning of the epidemic, much attention is paid to person-to-person transmission, disinfection of virus-contaminated surfaces, and social distancing. However, there is much debate about the routes of disease transmission, including airborne transmission, so it is important to elucidate the exact route of transmission of the COVID-19 disease. To this end, the first systematic review study was conducted to comprehensively search all databases to collect studies on airborne transmission of SARS-CoV-2 in indoor air environments. In total, 14 relevant and eligible studies were included. Based on the findings, there is a great possibility of airborne transmission of SARS-CoV-2 in indoor air environments. Therefore, some procedures are presented such as improving ventilation, especially in hospitals and crowded places, and observing the interpersonal distance of more than 2 meters so that experts in indoor air quality consider them to improve the indoor air environments. Finally, in addition to the recommendations of the centers and official authorities such as hand washing and observing social distancing, the route of air transmission should also be considered to further protect health personnel, patients in hospitals, and the public in other Public Buildings.
“…Finally, fourteen studies were eligible and included in this SR based on the inclusion/exclusion criteria, as illustrated in Fig. 1 ( WANG and YONEDA, 2020 , BUONANNO et al, 2020 , VUORINEN et al, 2020 , STADNYTSKYI et al, 2020 , CHIA et al, 2020 , FARIDI et al, 2020 , KENARKOOHI et al, 2020 , SANTARPIA et al, 2020a , SANTARPIA et al, 2020b , LIU et al, 2020 , Orenes-Piñero et al, 2020 , KIM et al, 2020 , MASOUMBEIGI et al, 2020 , RAZZINI et al (2020) ) . Fig.…”
Section: Resultsmentioning
confidence: 99%
“…These studies were conducted in Iran (n = 3), USA (n = 2), China (n = 1), Spain (n = 1), Singapore (n = 1), Philadelphia (n = 1), Korea (n = 1) and Italy (n = 1). Of the 14 records, three studies examined the main hypothesis of the present SR based on the simulation method ( WANG and YONEDA, 2020 , BUONANNO et al, 2020 , VUORINEN et al, 2020 ). These studies were conducted in Japan (n = 1), Italy (n = 1), and Finland (n = 1).…”
Section: Resultsmentioning
confidence: 99%
“… These data support the recommendation to carry out frequent disinfection of the surfaces of hospitalized patients. ( WANG and YONEDA, 2020 ), Japan Determination of the optimal penetration factor for evaluating the invasion process of aerosols Simulation R N N The penetration mechanism was explored by the proposed optimal penetration factor and the error analysis of each method. They also provided a rapid and accurate assessment method for preventing and controlling the spread of the epidemic.…”
At the end of December 2019, the rapid spread of the COVID-19 (SARS-CoV-2) disease and, subsequently, deaths around the world, lead to the declaration of the pandemic situation in the world. At the beginning of the epidemic, much attention is paid to person-to-person transmission, disinfection of virus-contaminated surfaces, and social distancing. However, there is much debate about the routes of disease transmission, including airborne transmission, so it is important to elucidate the exact route of transmission of the COVID-19 disease. To this end, the first systematic review study was conducted to comprehensively search all databases to collect studies on airborne transmission of SARS-CoV-2 in indoor air environments. In total, 14 relevant and eligible studies were included. Based on the findings, there is a great possibility of airborne transmission of SARS-CoV-2 in indoor air environments. Therefore, some procedures are presented such as improving ventilation, especially in hospitals and crowded places, and observing the interpersonal distance of more than 2 meters so that experts in indoor air quality consider them to improve the indoor air environments. Finally, in addition to the recommendations of the centers and official authorities such as hand washing and observing social distancing, the route of air transmission should also be considered to further protect health personnel, patients in hospitals, and the public in other Public Buildings.
“…Therefore, environmental researchers have also been focusing on evaluating the persistence and transmission of this virus in the environment and the environmental factors affecting its fate. As detailed in above sections, researchers have been raising concerns for the environmental transmission of this virus through air (Morawska and Cao 2020 ; Wang and Yoneda 2020 ) and wastewater (Cahill and Morris 2020 ; Romano-Bertrand et al 2020 ; Usman et al 2020b ). Transmission dynamics of this virus can be affected by the characteristics of the ambient environment.…”
The ongoing pandemic of the coronavirus disease 2019 (COVID-19) is a global health emergency. Thousands of articles have been published to tackle this crisis. Here, a bibliometric study of the publications in environmental studies has been conducted to identify the emerging research trends in this field in the era of COVID-19. Bibliometric analysis serves as a useful tool to evaluate research productivity and scholarly trends in a field. For this, publications were searched in nine environment-related subject categories indexed in Science Citation Index Expanded (SCI-EXPANDED) database of the Web of Science Core Collection. A bibliometric evaluation of 495 relevant documents was performed to identify various essential research indicators, including the type of the publication, the most prominent journals, subject categories, authors, institutions, and the countries, that contributed significantly to this theme. Major focus of this bibliometric study is to illustrate the potential research hotspots emerged during this pandemic. It has been found that significant amount of research has been conducted for the assessment of environmental quality and its contribution in environmental transmission of COVID-19. In addition to its positive impacts on environment, COVID-19 has contributed indirectly in worsening many environmental threats such as increased exposure to disinfectants and antimicrobials, poor solid waste management, and food insecurity. Researchers have also been focusing on the strategies for the planning of post-COVID-19 cities and buildings and to protect the ecology. This bibliometric study allowed the visualization of research agenda in the field of environmental studies during this pandemic.
“…Coronavirus disease 2019 (COVID- 19), which is zoonotic in origin and most commonly spread through respiratory droplets or aerosol transmission, has caused a big threat to mankind. 1 The disease was originated in the seafood market of Wuhan, Hubei, China, in early December 2019 with clinical presentations greatly resembling viral pneumonia. 2 This disease has affected most of the countries in the period of 2 months itself.…”
BackgroundCoronavirus disease-2019 (COVID-19) has caused a great global threat to public health. The World Health Organization (WHO) has declared COVID-19 disease as a pandemic, affecting the human respiratory and other body systems, which urgently demands for better understanding of COVID-19 histopathogenesis.ObjectiveData on pathological changes in different organs are still scarce, thus we aim to review and summarise the latest histopathological changes in different organs observed after autopsy of COVID-19 cases.Materials and methodsOver the period of 3 months, authors performed vast review of the articles. The search engines included were PubMed, Medline (EBSCO & Ovid), Google Scholar, Science Direct, Scopus and Bio-Medical. Search terms used were ‘Histopathology in COVID-19’, ‘COVID-19’, ‘Pathological changes in different organs in COVID-19’ or ‘SARS-CoV-2’. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2009 guidelines were used for review writing.ResultWe identified various articles related to the histopathology of various organs in COVID-19 positive patients. Overall, 45 articles were identified as full articles to be included in our study. Histopathological findings observed are summarised according to the systems involved.ConclusionAlthough COVID-19 mainly affects respiratory and immune systems, but other systems like cardiovascular, urinary, gastrointestinal tract, reproductive system, nervous system and integumentary system are not spared, especially in elderly cases and those with comorbidity. This review would help clinicians and researchers to understand the tissue pathology, which can help in better planning of the management and avoiding future risks.
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