A Bibliometric Analysis of Global Research on Japanese Encephalitis From 1934 to 2020

Abstract

Japanese encephalitis (JE) is a mosquito-borne disease caused by the Japanese encephalitis virus (JEV). The disease is mainly an epidemic in Asia and has been studied for nearly 90 years. To evaluate the research trends of JE, 3,023 English publications between 1934 and 2020 were retrieved and analyzed from the Web of Science database using indicators for publication, country or territory, citation, journal, author and affiliation, keyword co-occurrence cluster, and strongest citation bursts detection. The results of the bibliometric analysis and the visualization tools show that the number of annual publications on JE has been increasing. JE has been continuously studied in the USA and also many Asian countries, such as Japan, China, India, and South Korea; however, only a few publications have high citations. The main research groups of JE in the last 5 years were in China, Japan, and the UK. The keyword co-occurrence analysis and the strongest citation bursts detection revealed that most studies focused on the pathogenic mechanism of JEV, control of outbreaks, and immunization with JE vaccine. The research maps on JE obtained by our analysis are expected to help researchers effectively explore the disease.

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“…In this study, symptoms like fever, seizure, cold, vomiting, pain in the throat, cough, chest pain, joint pain, redness in the eyes, mouth ulcer, and pain in the abdomen are reported and these findings corroborated by the findings of Xu et al (2022). However, abdominal pain might be associated with dietary habits or any other bacterial infections that might be given importance while the patients are admitted to the hospital.…”

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“…and causes severe neurological manifestations [4,5]. JEV is an endemic in Life 2022, 12, 952 2 of 17 eastern and southern Asia countries and Australia, with fatality rates of 20-30% and lifelong neurological impairments and sequelae among one-half of the survivors [6][7][8][9][10]. Nearly 68,000 clinical cases of JEV infection and approximately 20,000 deaths are reported annually in many Asian countries, and its transmission is endemic in 24 countries of Southeast Asia and Western Pacific regions [11][12][13].…”

Pigeon Circovirus over Three Decades of Research: Bibliometrics, Scoping Review, and Perspectives

“…Bibliometric tools are employed to perform a variety of analyses producing measures related to authorship, sources of records, collaborations, citations, and keywords association and co-occurrence, among others. Previously, reviews employing bibliometrics and original bibliometric studies on several viruses, including coronaviruses, oncolytic viruses, human immunodeficiency virus, norovirus, Japanese encephalitis virus, African swine fever virus, and other veterinary and human pathogens, have been published in various scientific journals [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”