Alsulaiman Jomana W, Alzoubi Abdallah, Alrawashdeh Ahmad, Al-Dekah Arwa M, Abubaker Sara, Amayreh Wajdi, Sweileh Waleed M, Alzoubi Hamed M, Kheirallah Khalid A
Department of Pediatrics, Faculty of Medicine, Yarmouk University, Irbid, Jordan.
Department of Pharmacology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan.
J Infect Public Health. 2025 Jan;18(1):102597. doi: 10.1016/j.jiph.2024.102597. Epub 2024 Nov 22.
With an ever growing and expanding body of literature on the newly developed vaccines against the COVID-19, there is an urgent need for a comprehensive analysis of the current state of research on vaccine effectiveness (VE). This study conducted a comprehensive bibliometric analysis to critically examine the productivity and impact of retrieved publications on COVID-19 VE and to predict the future directions of research in the field.
The global literature on COVID-19 VE from 2021 to 2024 was extracted from the VIEW-hub website. Using bibliometric analysis tools, specifically Microsoft Excel, the R package "bibliometrix, biblioshiny" and VOSviewer, we analyzed publications for trends in productivity, citations, and global collaboration. Key metrics assessed include publication and citation trends, influential authors, collaborative networks, and thematic evolution, offering a comprehensive view of the research landscape on COVID-19 VE.
A total of 490 publications were authored by 5031 authors from 934 institutions and 78 countries and published in 119 journals. Most retrieved publications were original articles (99.6 %). The United States was the most productive country with 205 publications (41.8 %). Global research collaborations were mainly within developed countries. Analysis of the thematic evolution of the field illustrated changing research focus over three distinct time clusters. Throughout 2021, studies were focused on outlining infection prevention and control measures, as well as examining the efficacy of novel mRNA vaccines. In 2022, the linchpin of research was shifted towards dissecting the epidemiological correlates of the pandemic in light of the widespread use of vaccines. The final cluster showed special emphasis on the new variants of COVID-19 and the long-term outcomes of vaccines.
Our study identified geopolitical disparities and weak engagement from developing countries in the ongoing efforts regarding COVID-19 VE. This study can inform researchers, policymakers, and funding agencies as they assess ongoing research and future directions in COVID-19 VE.
随着关于新研发的新冠疫苗的文献数量不断增加且范围不断扩大，迫切需要对疫苗有效性（VE）研究的现状进行全面分析。本研究进行了全面的文献计量分析，以批判性地审视检索到的关于新冠疫苗有效性的出版物的生产力和影响力，并预测该领域未来的研究方向。
从VIEW-hub网站提取了2021年至2024年关于新冠疫苗有效性的全球文献。使用文献计量分析工具，特别是Microsoft Excel、R包“bibliometrix, biblioshiny”和VOSviewer，我们分析了出版物的生产力、引用情况和全球合作趋势。评估的关键指标包括出版和引用趋势、有影响力的作者、合作网络和主题演变，从而全面了解新冠疫苗有效性的研究格局。
共有来自934个机构和78个国家的5031名作者撰写了490篇出版物，并发表在119种期刊上。检索到的大多数出版物为原创文章（99.6%）。美国是产出最多的国家，有205篇出版物（41.8%）。全球研究合作主要发生在发达国家之间。对该领域主题演变的分析表明，在三个不同的时间集群中研究重点发生了变化。在2021年全年，研究重点是概述感染预防和控制措施，以及研究新型mRNA疫苗的疗效。2022年，随着疫苗的广泛使用，研究重点转向剖析疫情的流行病学关联因素。最后一个集群特别强调了新冠病毒的新变种和疫苗的长期结果。
我们的研究发现了地缘政治差异以及发展中国家在当前新冠疫苗有效性研究中的参与度较低。这项研究可为研究人员、政策制定者和资助机构在评估新冠疫苗有效性的当前研究和未来方向时提供参考。
