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This article presents a Scientometric analysis of Covid-19 Vaccine research Literature indexed by Web of Science. Assessing research activity is important for planning future protective and adaptive policies. The objective of the current study was to assess research activity on Covid-19 Vaccine literature. A Scientometric method was applied using Scopus, Documents on "Covid-19 literature". The study period was from 1971 to 2020. The search query found 7181 documents in Coronavirus Vaccine literature. The growth of publications showed 4402 in 2020. Documents published in Vaccine journal received the highest number of publications (203) followed by Journal of Virology with 104 Publications, Nature with 96 Publications. The most productive countries are i.e. the United States with 2178 (H-Index-114), Chine with 1068 (H-Index-75, India with 678 (H-Index-26), and the United Kingdom with 614 (H-Index-53).
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This paper attempts to highlight the growth and development of Covid-19 Vaccine literature and make the quantitative and qualitative assessment by way of analyzing various features of research output and Citations impact based on the Web of Science database. A total of 433 publications were published on Covid-19 Vaccine, which received 52567 Citations during 1989-2020. The average number of citations per publication was 121.4. The research was peaked in 2020 with 97(Which received a minimum of 500 Citations) Publications and the highest number of citations (14623) were received in 2020. USA had the highest share 229 ofpublications and received 29027 Citations followed by the Peoples Republic of China with 13798 Citations for 114 publications, the UK with 4314 Citations for 35 publications, Germany with 3404 Citations for 33 publications, the Netherlands with 28 Citations for 28 publications. The study found that India has recorded 705 Citations for 9 Publications. The highly productive Institutions were: National Institute of Allergy and Infectious Diseases from the USA with 39 publications and received 6076 Citations followed by University N Carolina- the USA with 31 publications and 4118 citations, University Hong Kong- China with 23 publications and 3546 citations, New York Blood Centre with 21 publications and 2931 citations. The highly productive (Citations) journals are JOURNAL OF VIROLOGY with 5724 Citations for 53 Publications, SCIENCE with 4163 Citations for 13 publications, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA with 3113 Citations for 20 publications, NATURE with 2250 Citations for 13 publications, and LANCET with 1528 Citations for 8 publications. This may be attributed to a new field for research to demystify the phenomena of Covid-19 Vaccine. There were 18 single Author publications by the scientists and 2906 multi-Author collaborative publications. The Collaboration Index is 7.05 and Citing Articles 15055.
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The paper presents a analysis of quantitative and qualitative dimensions of global research output (3488 records) on "Impact of COVID-19 on Children and Adolescents", based on indexed publications in Scopus database. The global publications on this theme averaged 8.31 citations per paper. About 1.49% share of its total publications in this area received external funding support. The 145 countries partcipitated in global research output on "Impact of COVID-19 on Children and Adults", of which the top 10 countries accounted for 85.21% and more than 100% share of global publications and citations. The USA, U.K. and Italy leads in global publications ranking and productivity as against China (3.16), U.K (1.28) and USA (1.27) leading in terms of relative of relative citation index. The 412 organizations and 661 authors participated in global research on this theme, with top 15 most productive organizations and authors contributing 21.07% and 4.30% global publications share and 38.05% and 12.98% global citations share. Harvard Medical School, USA, Huazhong University of Science and Technology, China and Tongji Medical College, China leads the world as the most productive organizatons (with 480, 67 and 63 publications) and Huazhong University of Science and Technology, China (31.97 and 3.85), Tongji Medical College, China (19.92 and 2.40) and Children Hospital of Philadelphia, USA (19.30 and 2.32) leading as the most impactful organizations in the world in terms of citation per paper and relative citation index. D. Buonsensov, C. Calvo and X. Lu were the most productive authors (with 15, 12 and 12 papers) and X.Lu (103.83 and 12.49), A. Licari (40.11 and 4.83) and G.L. Marseglia(34.09 and 4.1) were the most impactful authors. JAMA Pediatrics, Pediatrics Infectious Disease Journal and Acta Paediatrica International Journal of Pediatrics were the most productive journals (with 71, 60 and 58 papers) and Pediatrics (36.59), JAMA Pediatrics (19.49) and Acta Paediatrica International Journal of Pediatrics (14.93) were the most impactful journals.
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Background: As the Covid-19 pandemic increased exponentially across the globe, it has threatened the human lives and uprooted the economy of various cities and nations, besides having a major impact on the environment. In a matter of a few months, the world has transformed its way of living. The global disruption caused by the Covid-19 has brought about several effects on the environment and climate. Hence, a scientometric study of the India's publications in impact of Covid-19 on environment has been conducted to identify the emerging research trends in this field. Methods: The study downloaded India's publications on this topic from the Scopus database using a well-defined research strategy, which was based on using all keywords related to Covid-19 in "Keyword" and "Title" search tags of Scopus database. The search was subsequently restricted to "Environmental Sciences" subject, and limited to "India" yielding 805 records. Results: The 805 Indian publications were published on `Covid-19 and Environmental Sciences" as searched in Scopus database and these have received 8275 citations, averaging 10.28 citations per paper. The 30.19% and 36.64% share of India's publications received external funding support and involve international collaboration. Among India's foreign collaborating partner countries, USA contributed the largest share (27.80%), followed by U.K. (21.02%), China and Saudi Arabia (14.24% each) and Australia (13.9%). Among 380 participating organizations, Datta Meghe Institute of Medical Sciences, Nagpur, Indian Institute of Technology, Kharagpur and Academy of Scientific and Innovative Research, New Delhi contributed the largest number of papers (31, 26 and 26 papers) and Indian Institute of Technology, New Delhi (47.5 and 4.68), Karunya Institute of Technology and Sciences (28.29 and 2.79) and Indian Institute of Technology, Gandhinagar (19.75 and 1.95) registered the largest citation impact. Among 945 participating authors, M. Kumar, S. Gautam and R. Kumar contributed the largest number of papers (25, 13 and 10 papers) and A. Narayanasamy (61.17 and 6.03), S. Gautam. (30.46 and 3.0) and M. Joshi (27.29 and 2.69) registered the largest citation impact. Indian Journal of Forensic Medicine and Toxicology, Science of the Total Environment and Environmental Science and Pollution Research contributed the largest number of papers (76, 60 and 45 papers) and Environmental Pollution (12.0), Aerosol and Air Quality Research (11.12), Modeling Earth Systems and Environment (10.50) registered the largest citation impact of paper. The most significant keywords associated with "Covid-19 and Environmental Science" along with their frequency are: Air Quality (124), Air Pollution (96), Particulate Matter (91), Atmospheric Pollution (65), Environmental Monitoring (52), etc. Conclusion: The results of the present study are focused on evaluation of the India's contribution, focusing on both national and international issues using quantitative and qualitative methods. Such a study has allowed us to visualize the research trends that emerged during the Covid-19 pandemic and will facilitate the researchers to identify significant hotspots and latest trends in the field.
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Background: Covid-19 is a significant global health burden. The pulmonary morbidity and mortality of Covid-19 is well described, however, there is mounting evidence of neurological manifestations of SARS-CoV-2, which may be of paramount significance. This paper provides a bibliometric assessment of global literature of the peripheral and central neurological manifestations of Covid-19, using bibliometric methods. Methods: The study downloaded publications on this topic from the Scopus database using a well-defined research strategy. The search strategy was initially based on using different keywords related to Covid-19 in "Keyword" and "Title" search tags of Scopus database. The search was subsequently restricted to "Neurosciences" subject, yielding 5245 global records. Results: The 5245 global publications were published on `Covid-19 and Neurosciences" as covered in Scopus database and they have received 5245 citations, averaging 13.46 citations per paper. Of these 5245 publications, 24.54% (1287) received external funding support from 150+ agencies and averaged 20.17 citations per paper. 160 countries participated in global research on this topic, with USA, U.K. and Italy contributing the largest publication share (26.43%, 12.14% and 10.51%) and China (23.8 and 1.78), Spain (9.13 and 0.68) and Italy (8.56 and 0.64) registering the highest citation impact, based on citations per paper and relative citation index. "Adults", among population age groups, contributed the largest share (30.31%), followed by "Aged" (9.48%), "Middle Aged" (9.02%), "Children"(4,73%) and "Adolescents" (2.71%). "Stroke", "Multiple Sclerosis" and "Headache" among type of neurological diseases impacted by Covid-19, contributed the largest global publication share (6.31%, 6.22% and 6.06%), followed by "Seizure", "Parkinson's Disease", Cerebrovascular Accident", "Anosmia", "Guillain-Barre Syndrome" and "Epilepsy" (from 4.39% to 5.62%), etc. "Clinical Studies", among various types of research, contributed the largest publication share (29.38%) in total output impacted by Covid-19, followed by "Complications" (16.03%), "Treatment" (13.99%), "Pathophysiology" 12.18), "Risk Factors"(10.79%), "Epidemiology" (9.38%) and "Genetics". Among participating organizations, Harvard Medical School, USA, University of Toronto, Canada and INSERM, France contributed the largest output (with 142, 101 and 99 papers) and University of Cambridge, U.K. (72.97 and 5.46), King's College London, U.K. (49.97 and 3.74), University College London, U.K. (47.58 and 3.56) registered the largest citation impact. Among participating authors, J. Sterer (24 papers), F.A. Scorza (20 papers) and E. Moro (14 papers) contributed the largest number of papers and Z. Liu (169.7 and 12.7), M.L.R. Neto (54.92 and 4.11) and G. Tsivgoulis (45.54 and 3.41) registered the highest citation impact. Among journals participating on this theme, Psychiatry Research (311 papers), The Lancet Psychiatry (175 papers) and Frontiers in Neurology (172 papers) contributed the largest number of papers and Brain, Behavior and Immunity (61.35), The Lancet Psychiatry (54.58) and Nature Human Behavior (44.37) registered the largest citation impact per paper. Conclusion: This paper evaluates the rapidly evolving literature on the neurological manifestations of Covid-19, which will help to inform and improve decision-making among physicians treating Covid-19 and scholars conducting research on this area. It will also aid in the recognition of significant extra-pulmonary manifestations of the disease among attending front-line clinicians and consulting neurologists and also help them in understanding the pandemic's broader impact on chronic disease management.
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Background: The Covid-19-related diabetes research is confined mainly to type 2 diabetes. Although type 1 diabetes (T1D) which presents unique challenges in Covid-19, appears to be well-researched, a bibliometric assessment of this research is lacking. Materials and Methods: Using a defined search procedure, we identified publications on Covid-19-related T1D research in Elsevier's Scopus database during 2020-2021. The data was analyzed using appropriate bibliometric tools. Results: The publications numbered 255 until August 4, 2021. Seventy-three (28.6%) were funded;these received higher average citations than non-funded (19.0 versus 9.8). The share of publications by age group was as follows: adults (36.8%), children (34.9%), adolescents (27.0%), middle-aged (15.7%), and elderly (10.6%). Sixty-nine countries participated;the USA, Italy, and UK led in productivity, whereas Canada, UK, and Italy were the most impactful. Barbara Davis Center, USA, University of Colorado, USA, and King's College London, UK were the most productive, whereas the University of Glasgow, UK, PGIMER-Chandigarh, India, and Barbara Davis Center, USA were the most impactful organizations. USA's Q. Ebekozien and Italy's C. Maffeis and R. Schiaffini led in productivity, whereas Italy's A. Avogaro and India's S. Bhadada and R. Pal led in impact. Diabetes Research and Clinical Practice and Diabetes Care were the leading journals. Only 12 (4.7%) publications were highly-cited. Conclusion: Covid-19-related T1D research has primarily been conducted in high-income countries such as the USA, UK, and Italy. There is a need to foster collaboration between high-income and low-income countries for further research to develop better management strategies for worldwide patients with the double scourge of T1D and Covid-19.
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Background: Several studies have examined Vitamin D deficiency (VDD) and the effects of vitamin D therapy in patients with coronavirus disease 2019 (Covid-19). However, a bibliometric assessment of research output on VDD in relation to Covid-19 is unavailable. Materials and Methods: We searched Elsevier's Scopus database for publications on VDD in Covid-19 using a defined search strategy. Data pertaining to the growth of publications, citation metrics, the most active countries, institutions, authors, journals, and the most cited articles, were analyzed using appropriate bibliometric tools. Mapping of keywords was done to identify the research trends. Results: Of 435 global publications on VDD in Covid-19, 187 (42.9%) were original articles. The total and average citations per paper (CPP) were 5664 and 13.0, respectively. Eighty-eight (20.2%) publications were funded;the National Institute of Health, USA, was the leading funding agency (n=18). Seventy-four countries participated in research on this theme;the USA and Italy with 18.3% and 16.5% led in productivity, whereas Ireland and the USA were the most impactful. The most dominant research topic was "Risk Factors" with 29.6% share, followed by "Epidemiology" (27.3%), "Complications" (26.4%), "Clinical studies" (24.8%), and "Pathophysiology" (17.2%), only 14.0% studies were on "Treatment". The research patient populations were "Adults", "Aged," and "Middle-Aged," with 24.1%, 21.6%, and 17.7% share, respectively;only 6.4% studies involved children. The organizations and authors numbered 254 and 383, respectively;Trinity College, Dublin, Ireland, and Harvard Medical School, USA, were the most productive, whereas St. James's Hospital, Ireland, and University Hospital Brigham, UK were the most impactful. Belgium's Delanghe and Ireland's Kenny were the top productive authors, and Grant (USA) and Laird (Ireland) were the most influential. Journal of Medical Virology and Endocrine lead productivity while Aging Clinical and Experimental Research and Diabetes and Metabolic Syndrome: Clinical Research and Review lead in impact. Conclusion: The research on VDD in relation to Covid-19 has primarily been conducted in high-income countries, with the USA, Italy, and UK accounting for almost 50% of total publication output. The research gaps appear to be treatmentrelated aspects and VDD in children with Covid-19. Our assessment of the current status of research on VDD in Covid-19 may help the research community and policy-makers to prioritize research needs in this field.
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Background: Many patients with Covid-19 have underlying cardiovascular disease or develop acute cardiac injury during the course of the illness. Adequate understanding of the interplay between Covid-19 and Cardiovascular disease is required for optimum management of these patients. The study analyzed and evaluated the global publication output on "Covid-19 and Heart Diseases" to find out the current trends and present status of research, by identifing important countries, organizations, authors and journals and important topics and keywords from the global publications, using bibliometric methods. Methods: Relevant published literature from December 2019 to August 2021 were identified and analyzed on the topic "Covid-19 and Heart Diseases" using a well-defined search strategy in Scopus database. A list of keywords were identified for Covid-19 ("Covid 19" or "2019 novel Coronavirus" or "Coronavirus 2019" or "Coronavirus disease 2019" or "2019-novel CoV" OR "2019 ncov" or "Covid 2019" or "Covid19" or "Corona virus 2019" or "ncov-2019" or "ncov2019" or "nCoV 2019" or "2019-ncov" or "covid-19" or "Severe acute respiratory syndrome coronavirus 2" or "SARS-CoV-2") and Heart Diseases (cardi* or arrhythmia or myocardial* or heart*) and these keywords are used for search in "Keywords" and Title" tags of Scopus database, yielding 5298 records. Results: A total of 5298 relevant publications indexed in Scopus database were obtained on "Covid-19 and Heart Disease", which received 62459 citations, averaging 11.79 citations per paper. The total publications witnessed the participation of 123 countries, with USA, Italy, U.K. and China leading in global publication productivity (with 1757, 707, 551 and 413 papers) and China (35.31 and 2.99), France (23.01 and 1.95), Germany (23.0 and 1.95) and Italy (20.43 and 1.73) leading in citation impact per publication and relative citation index. The 1761 organizations and 2499 authors participated in these 5298 publications. Harvard Medical School, USA, Brigham and Women's Hospital, USA and Massachsetts General Hospital leads in publications productivity (with 178, 92 and 92 publications each) and New York Presbyterian Hospital, USA (121.53 and 10.31), Tongji Medical College, China (65.65 and 5.57) and Huazhong University of Science and Technology, China (65.41 and 5.55) leads in citations impact per paper and relative citation index. M. Metra, A. Harky and M.K. Chung leads in publications productivity (with 23, 22 and 153 papers each) and G.Y.H. Lip (U.K.)(114.67 and 9.73), A.J. Kirtane (USA)(109.67 and 9.3) and M. Metra (Italy)(87.04 and 7.38) leads in citations impact per publication and relative citation index. European Heart Journal, Circulation and Stroke leads in publication productivity (with 85, 81 and 73 publications) and JAMA Cardiology (154.23), Journal of the American College of Cardiology (54.99) and Circulation (43.54) leads in citation impact per paper. Major keywords appearing along with "Covid-19 and "Heart Diseases" in co-occurnces were "Cardiovascular Disease" (1176), "Heart Failure" (802), "Hypertension" (664), "Cerebrovascular Accidents" (659), "Stroke" (608), "Mycarditis" (511), "Heart Arrhytthrmia"(464), etc. Conclusion: The study presents the current trends and status of research in the field and indicate the important keywords where research is focused in global literature on cardiovascular manifestations in Covid-19 patients. Such a analysis tmay be useful to the research community and decision-makers to prioritize research needs and identify leading Covid-19 researchers, countries, institutes and authors.
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The paper examines global research output (1656 records) on "Impact of Covid-19 on Sleep Disorders", based on publications indexed in Scopus database. The global publications on this theme averaged 15.05 citations per paper. About 19.02% share of its total publications on this theme received external funding support and averaged 34.59 citations per paper. Ninety five countries unevenly partcipitated in global research output on "Impact of Covid-19 on Sleeping Disorders", of which the top 10 most productive countries accounted for 87.62% and more than 100% share in global publications and citations. The USA, China and Italy led in global publications ranking and productivity as against China (2.52), U.K.(2.26) and Italy (1.67) leading in terms of relative citation index.The 527 organizations and 773 authors participated in global research on this theme, with top 15 most productive organizations and authors contributing to 21.62% and 6.28% global publications share and 63.70% and 56.20% global citations share. Huazhong University of Science & Technology, China, and Tongji Medical College, China and Harvard Medical School, USA were the most productive global organizations (with 40, 38 and 33 papers) and Capital Medical University, China (153.85 and 10.22), Wuhan University, China (109.33 and 7.26) and Renmin Hospital of Wuhan University, China (108.10 and 7.18) were the leading most impactful organizations in terms of citation per paper and relative citation index. Z. Liu, S. Grover and G. Wang were the most productive authors (with 9, 8 and, 8). L.Kang (395.17 and 26.26), Y. Wang (395.17 and 26.26) and, S. Ma (322.0 and 21.4) were the most impactful authors. International Journal of Environment Research & Public Health, Sleep Medicine and Frontiers in Psychiatry were the most productive journals (with 73, 69 and 49 papers). Brain, Behavior & Immunity (86.04)., Asian Journal of Psychiatry (46.78), Psychiatry Research (41.15) were the most impactful journals.
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Background: Animal studies are an indispensable part of fundamental and applied research essential for the advancement of human and veterinary health, including the current global quest for treatments and a vaccine development to combat the infectious diseases. This necessity is now clearly highlighted by the ongoing Covid-19 pandemic More recently a growing number of studies are published on this theme. Therefore, a bibliometric analysis of research on "Animal models in Covid-19" research is necessary and it is likely to focus on current status of research and indicate future direction in this study. Materials and Methods: The India's originated literature is searched on " Animal Models in Covid-19" using two set of keywords related to Covid-19 and animals in "Keyword" and "Title" (Title of articles) tags to reach the relevant publications. VOSviewer was applied to perform the bibliometric analysis of these articles. Bibliographical data obtained from above search strategy was analysed by using well-established bibliometric indices. Results: The bibliometric analysis of India's literature on the topic "Animal Models in Covid-19" research indicates that there were 2343 India's publications indexed in Scopus database during 2020-21. The topic witnessed the uneven participation of more than 160 countries, where 88.63% and more than 100.0% share of the global publications and citations share caming from top 10 countries. USA leads the ranking with global publication share of 28.16% share, followed by China (13.30%, U.K. (10.67%), Italy (9.93%). India's research output on this topic registered 7.46% share to global output. The 496 organizations and 869 authors participated in India's research on "Animal Model in Covid-19", of which the top 25 Indian organizations and 25 authors contributed 46.58% and 22.60% share to India's national publication output and 61.19% and 48.8% share to India's citation output respectively. AIIMS - New Delhi, PGIMER- Chandigarh, and IVRI-Bareilly were the most productive organizations (with 118, 115 and 68 publications). IVRI-Bareilly, PGIMER-Chandigarh and College of Veterinary Science, Mathura were the impactful organizations in terms of citation per paper and relative citation index. K. Dharma, R. Tiwari and Y.S. Malik were the most productive authors (with 63, 35 and 27 papers). H. Harapan, A.K.Singh and A Misra were the most impactful authors (with 90.42, 88.20 and 73.31 CPP).. International Journal of Research in Pharmaceutical Sciences, Indian Journal of Medical Research and Diabetes and Metabolic Syndromes. Clinical Research and Review were the most productive journals (with 72, 56 and 50 papers). Conclusion: The paper provides a understanding of the current research on animal models presently used in Covid-19 research in India, identify key players and their collaboration patterns and key sub-fields, which may be useful to practicing scholars and clinicians to advance their future research in a more effective manner and to policymakers in deciding the area of research to be funded in future.
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Background: The global scientific community has been quick to respond to health crisis unleashed by Covid-19 pandemic with intensified investments in R&D and thereby it gave new impetus to Covid-19 research. The world has come to witness unprecedented increase in research publications on control and treatment of Covid-19 pandemic. Like any other region in the world, South Asia too has been the worst-hit region and it too witnessed increase in Covid-related research studies. Systematic reviews of such literature and bibliometric studies are used nowadays as tools to identify and analyze key and significant South Asian contribution to the subject. The present study aims to assess and quantify the contribution and impact of Covid-19 research made by a group of select four South Asian countries. Methods: Publications data on Covid 19 covering the period between December 2019 and 8.7.2021 was sourced from the Scopus database. VOSviewer 1.6.14 software was applied to generate network maps, assess hot topics in the area and describe collaboration patterns in research between different countries. Results: A total of 18,64,275 publications reflecting the global research output on Covid-19 were retrieved from the Scopus database. The publications data of select four South Asian countries Pakistan, Bangladesh, Nepal and Sri Lanka - was also retrieved. Comparatively the data size of select four South Asian countries was small, limited to 4012 documents, and accounting for a 2.15% share of the global research output on Covid-19 virus. Pakistan published the most number of Covid-19 publications (n = 2246, 55.58%), followed by Bangladesh (n = 1203, 29.99%), Nepal (n=512, 12.76%) and Sri Lanka (n=202, 5.03%). The United States as the collaborating partner in most number of publications contributed by South Asian countries (n = 609, 25.41%), followed by the United Kingdom (n=496, 20.69%), China (n=453, 18.90%), Saudi Arabia (n=441, 18.40%) and India (n=426, 17.77%). Covid-19 treatment type was the most studied topic in the contributions made by South Asian countries accounting for a 16.45% share, followed by epidemiology (15.63%), risk factors (5.835), clinical studies (4.81%), etc. Conclusion: This paper finds that the quantity and quality of research pursued by a select group of four South Asian countries in the domain of Covid 19 studies has so far been small and insignificant. There is an urgent need on the part of select group of South Asian counties to improve their productivity and qualitative performance at the national, institutional, and individual author level.
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Background: The study analyzed and evaluated the scientific research on "Covid-19 and Aged People" to find out the current status of research and to identify significant players (countries, organizations and authors) and important topics from the 469 high-cited publications receiving 100 and more citations using bibliometric methods. Methods: High-cited publications published from December 2019 to June 2021 were identified and analyzed. A list keywords were identified for Covid-19 ("Covid 19" or "2019 novel Coronavirus" or "Coronavirus 2019" or "Coronavirus disease 2019" or "2019-novel CoV" OR "2019 ncov" or "Covid 2019" or "Covid-19" or "Corona virus 2019" or "ncov-2019" or "ncov2019" or "nCoV 2019" or "2019-ncov" or "covid-19" or "Severe acute respiratory syndrome coronavirus 2" or "SARS-CoV-2") and Aged People ("Aged" or "Elderly" or "Old" or "Very Elderly") and these keywords are used for search on the topic of study (the title, , keywords). Results: A total of 469 high-cited publications were obtained on this topic, which registered 449.5 citations per paper and witnessed the participation of 64 countries, with China, USA and U.K. leading in global publication productivity (with 189, 162 and 70 publications each) and China (687.25), Singapore (409.20) and Switzerland (396.41) leading in citation impact per paper. The 2123 organizations and 5896 authors participated in these 469 high-cited publications. Huazong University of Science and Technology, China, Wuhan University, China and University of Oxford, U.K. leads in publications productivity (with 66, 37 and 20 publications each) and Capital Medical University, China, University of Hong Kong (1454.6) and Shanghai Jiao Tong University, China leads in citations impact per paper. L. Liu, J. Chen and Y. Hu leads in publications productivity (with 16, 13 and 13 publications each) and Y. Liu (17100.5), Y.Hu (15395.5) and L. Zhang (15079.0) leads in citations impact per paper. New England Journal of Medicine, Lancet and JAMA - Journal of the American Medical Association leads in both publication productivity and citations impact per paper. The keywords that appeared most were "Covid-19" and "Aged People" which had a strong links with "mortality", "hospitalization", "hypertension", "respiratory failure", "diabetes mellitus", "chronic kidney failure", "anxiety:, "depression" and "mental health". Conclusion: The current bibliometric analysis provides information about the quantity and quality of research in this area based on published literature. It provides information on current status of research in this area to decision-makers and practicing scholars and provides important clues about upcoming research topics for future research.
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Introduction: The rapid production of a large volume of literature during the last 2-3 phases of the Covid-19 disease outbreak created a substantial burden for clinicians and scientists. Therefore, this paper provides a bibliometric overview on the high-cited papers indexed in the ESI database in the field of Covid-19, during 2020-21, focusing on the research domain and keywords, main actors (countries, organizations and authors) and main sources of publications. Methods: The Essential Science Indicators (ESI) database is widely used to assess scientific outputs. ESI include high-cited papers that have received enough citations to place them in the top 1% when compared to all other papers published in the same year in the same field. High-cited papers are defined as papers receiving 100 or more citations since their publication. Therefore, high-cited papers included in ESI database are of high-quality in each field and therefore used in this study. A bibliometric analysis based on 848 high-cited papers extracted from the Essential Science Indicators database was carried out to provide insights into performances and research characteristics of Covid-19 literature. Indicators were applied to evaluate the influence of the most productive journals, countries/territories, organizations and authors. Social network analysis was performed to evaluate and visualize the interaction among productive countries/territories, organizations, authors and keywords using VOSviewer software. Results: The results showed that the 848 high-cited papers received 244699 citations were from 9734 authors employed at 2607 organizations based in 101 countries/territories. The papers were published in 369 journals in the field. The top 5 core journals ranked based on: (i) total papers were New England Journal of Medicine (37), Science of the Total Environment (35), Science (28), The Lancet (21) and Nature (18) and (ii) total citations were New England Journal of Medicine (28173), Lancet (17128), JAMA-Journal of the American Medical Association (9603), International Journal of Antimicrobial Agents (5865) and Nature Medicine (5659). The top 5 organizations ranked on (i) total papers were Huazhong University of Science & Technology (42), Harvard Medical School, USA (41), University of Oxford, U.K. (31), University of Cambridge, U.K. (25) and London Global University (UCL)(25) and (ii) total citations were Huazhong University of Science & Technology, China (32563), University of Hong Kong (17868), Tsinghua University, China (15827), University of Oxford (13802) and Guanzhou Medical University, China (13155). The top 5 authors ranked on: (i) total papers were Y. Zhang (15), Y. Hu (14), L. Liu (14), J,. Wang (14) and Y. Liu (13) and (ii) total citations were Y. Liu (23285), J. Xiang (.20391), Y. Hu (18804) and Y. Zhang (16495). The top five countries ranked on : (I) total papers were USA (336), China (222), U.K. (153), Italy (90) and Germany (74) and (ii) total citations were China (114620), USA (88474), U.K. (46535), Italy (24546) and Germany (24028).Based on network map using VOSviewer, there were micro, meso and macro level collaborations based on common interests in a specific topic. Analysis of all keywords showed that the research was distributed into 6 clusters. Conclusion: Results obtained from this study can provide valuable information for researchers to better identify present and future hotspots in Covid-19-related fields. The most relevant literature on the Covid-19 pandemic will also provide information relevant to the evidence-based decision-making process and future studies are essential to gain precise knowledge on Covid-19 infection across various human organs and various sub-fields and sectors.
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Aim: The paper presents a bibliometric analysisis of high-cited papers (HCPs) on Covid-19 published during 2019-2021. The study provides evidence on current research trends in the subject, identifies influential countries, organizations, research papers and journals on Covid-19 research. The study evaluates publication and citation performance of highly-cited papers and maps network interactions amongst the key global players using VOSviewer software. Materials and Methods: The data for the study was sourced from Web of Science for the period 2019-2021. Results: The USA, China and the UK dominate global Covid-19 research in terms of research productivity. In terms of citation performance China leads the tally with the USA at the second position. The USA, China and the UK account for a 88% share of total HCPs in the subject. The study identified top eleven centers of excellence based on the criteria of most productivity as well as most-cited organizations. New England Journal of Medicine, Lancet, JAMA - Journal of the American Medical Association, Science and Nature are the most favoured journals for publishing HCPs. The relationship networks of most productive countries, organizations, and keywords are also given in the paper.
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The published article receives the number of Citations are measure of its impact in the scientific community. This study identifies the Highly cited articles on Animal Cell Diseases. Publications are identified using the Web of Science by Clarivate Analytics. A search was performed using Animal Cell Diseases with topic field. The 526 top-cited articles were selected, analyzed and Visualized. The most cited manuscripts appeared 208 journals, 3340 authors, 729 Institutions from 39 Countries. The citation counts for these articles ranged from 500-6157. 95 % of articles are were published between 1992-2012 and highest number of citations registered between 2000-2008. The most cited articles are: The most cited one is Apel K, Hirt H Reactive oxygen species: Metabolism, oxid,ative stress, and signal transduction ANNUAL REVIEW OF PLANT BIOLOGY. 2004;55: 373-399 with 6157 citations and authors are from Switzerland and Austria followed by Xu HY, Barnes GT, Yang Q, Tan Q, Yang DS, et al.Chronic inflammation in fat plays a crucial role in the development of obesity-related insulin resistance JOURNAL OF CLINICAL INVESTIGATION. 2003 DEC;112 (12): 1821-1830 with 4398 Citations authors from USA, Donehower La, Harvey M, Slagle Bl, Mcarthur Mj, Montgomery Ca, Et Al.Mice Deficient For P53 Are Developmentally Normal But Susceptible To Spontaneous Tumors Nature. 1992 Mar 19;356 (6366): 215-221 with 3926 Citations from USA. The time of publication, field of study, nature of the work, and the journal in which the work appears are possible determinants of the likelihood of citation and impact.
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This study analyses Covid-19 and Emergency Medicine research output during 2020-2021 on different parameters including global publications share, citation impact, contribution of authors and patterns of research communication in most productive and preferred journals. Web of Science Citation Database has been used to retrieve the data for 2 years (2020-2021) with 991 publications using the combined search of Covid-19 with topic field and Emergency Medicine with using Web of Science Subject Categories. The USA tops the list, with a publications share of 38.6%(383) followed far by Italy and UK ranks second with 7.7%(76), Canada with 7.6% and India ranks 14th positions with global publications share of 1.7 %(17)). The most productive Institutions are: Harvard Medical University lead with 34 Publications and received 134 Citations followed by University Toronto with 29 (96 Citations), Massachusetts Gen Hospital with 26 (86 Citations), Monash University with 22 (92 Citations), Columbia University and University Ottawa with 18 publications. The top most 5 preferred Journals are: AMERICAN JOURNAL OF EMERGENCY MEDICINE (IF: 1.70 with 141 publication followed far by ANNALS OF EMERGENCY MEDICINE (IF: 5.35) with 97 publications, RESUSCITATION (IF: 4.57) with 77, WESTERN JOURNAL OF EMERGENCY MEDICINE (IF: 1.80) with 71 and EMERGENCY MEDICINE JOURNAL (IF: 2.04) with 64. But its average annual publication growth rate and global publication share is high and Citation quality as reflected in Average Citations Per Paper is less. Concludes that the research needs to increase its output and bring about improvement in the quality of its research efforts. This can be done by investing much more international collaboration and by modernizing and strengthening its research infrastructure in the field of Medicines. © 2021. All Rights Reserved.
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The main aim of this paper is to analyze the global Covid-19 and Nursing literature to discover underlying trends and developments at the global, national, institutional, and individual level using Scientometric indicators. The publications and citations data for the study were sourced from the Web of Science database published during 2020-2021. The most productive and leading countries are: USA with 621 (43.4%) share far by China with 136(9.5%), UK with 108 (7.5%) share and Australia with 101(7.1%) share and other countries are published less than 5% of publications. India possessed 14th rank with 15 (1.0%) publications share. International collaboration has been a major driver of growth in Covid-19 and Nursing research. The paper lists most productive organizations, authors, and journals. The paper examines 1432 publications on Covid.-19 and Nursing during the years 2020-2021 as listed in the Web of Science database. The top Hot and highly-cited papers in this area are also analysed. © 2021. All Rights Reserved.
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The number of citations of a scientific article is considered as the weight of that work in the field of interest. Bibliometric/Scientometric analysis of the most cited articles conducted in some medical disciplines has identified the most relevant scientific contributions that pushed forward knowledge and practice of that discipline. We conducted a bibliometrics/Scientometric analysis of the most cited articles in Covid-19 Drugs, Vaccines and Medicines, by extracting relevant words that identify and querying the Scopus online database. A rank with the 100, 500 and 1000 above Citations of the most cited articles was obtained, based on the absolute number of citations. Word(s) extracted from the Scopus database. Among the Highly cited articles there are 22 articles received more than 1000 Citations, 83 articles have recorded more than 500 Citations and 816 articles recorded 100 Citations. A total of 22005 scientific journals had published the top 816 most cited articles in Covid-19 Drugs, Medicine and Vaccines of publications are published in reputed journals like The Lancet, Cell, Cell Research, New England Journal of Medicine, International Journal of Antimicrobial Agents, The Lancet Infectious Diseases, Allergy: Eropeans Journal of Allergy and Clinical Immunology, Military Medical Research, BioScience Trends, Journal of Hospital Infection, The Lancel Respiratory Medicine etc.. © 2021. All Rights Reserved.
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The paper examines 2539 Indian publications on Covid-19 Therapy and Treatment, as covered in Scopus database during 2019-May 2021. The top 10 most productive countries individually contributed global share of 33136, with USA accounting for the highest publication share with 8538, followed by China with 4558, Italy with 3707, United Kingdom with 3184, India with 2539, Spain with 1625, Germany with 1563, France with 1539, Canada. with 1353 and Iran with 1212 Publications. India is ranked at 5th position in global Covid-19 Therapy and Treatment research output. USA topped the list with 309 share in India’s international collaborative papers, followed by U.K. 161, Saudi Arabia 108, Australia 83, Italy 79 and China70, etc. The most productive Institutions are: All India Institute of Medical Sciences, New Delhi with 173 Publications, followed by Postgraduate Institute of Medical Education &Research, Chandigarh with 141, Datta Meghe Institute of Medical Sciences Deemed to be University with 71, Manipal Academy of Higher Education with 59. It is noted that 118 Institutions with more than 10 Publications, 5 Institutions with more than 50 Publications. The most preferred journals are: Journal Of Biomolecular Structure And Dynamics scored with 67 Publications, followed by Diabetes And Metabolic Syndrome Clinical Research And Reviews with 56, International Journal Of Current Research And Review with 42. The most leading authors are: Dhama, K. from Indian Veterinary Research Institute, Bareilly, India with 38 Publications followed by Tiwari, R. from College of Veterinary Science India, Tirupati, India with 23, Malik, Y.S. from Indian Veterinary Research Institute, Bareilly, India with 16, Javaid M from Jamia Millia Islamia, New Delhi, India, and Medhi, B. from Postgraduate Institute of Medical Education &Research, Chandigarh, Chandigarh, India, and Vaishya, R. Indraprastha Apollo Hospitals, New Delhi, India with 15 respectively. Major portion of these publications appeared in foreign journals of repute, as reflected by their impact factors and Citescores. The study also indicates that Indian scientists have huge international collaboration in this field Indian literature output peaked at about the same time as that of the world output. © 2021. All Rights Reserved.
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The study examines India’s performance based on its publication output in Covid-19 during 2020-2021, based on several parameters, including the, publications share and rank, institutional profile of selected institutions, international collaboration profile and major collaborative partners, patterns of communication in national and international journals, Highly cited papers and most productive authors. The study uses 2 years publications data in Covid-19 drawn from Web of Science international multidisciplinary bibliographical database. It is interesting to note that the prolific authors belong to All India Institute of Medical Science with 489 Publications (1266 Citations), Post Grad Inst Med Educational & Res with 171 (666 Citations), Dr DY Patil University with 85 (382 Citations), Indian Institute of Technology with 54 (349 Citations), Manipal Academy of Higher Education with 59 (279 Citations), and Banaras Hindu University with 56 (171 Citations). The most productive authors are Kumar A from Armed Forces Med College, Dept Ophthalmology, Pune (Maharashtra state) with 115 Publications and registered 372 Citations (H-Index: 10), Wiwanitkit from Dr DY Patil Univ, Pune (Maharashtra state) with 91 Publications (411 Citations) (H-Index: 11), Kumar S from Jai Narayan Vyas Univ, Jodhpur(Rajasthan state) with 85 (421 Citations) (H-Index: 10), Gupta S with 57 (209 Citations) (H-Index: 7), Singh with 53 (175 Citations) and Sharma S with 52 (359 Citations). The most preferred journals by the scientists were: INDIAN JOURNAL OF OPHTHALMOLOGY with 143 papers (443 Citations), JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS with 113(1066 Citations), ASIAN JOURNAL OF PSYCHIATRY with 100 (1419 Citations), INDIAN PEDIATRICS (61), DERMATOLOGIC THERAPY (57), INDIAN JOURNAL OF MEDICAL RESEARCH (52), and INDIAN JOURNAL OF PEDIATRICS (50). The most cited one is: Singhal T A Review of CoronavirusDisease-2019 (COVID-19), INDIAN JOURNAL OF PEDIATRICS. 2020 APR;87 (4): 281-286 with 604 Citations. © 2021. All Rights Reserved.