ReviewBioMed research international2026
Research Output and Global Trends in Lassa Fever: A 50-Year Bibliometric Analysis (1975-2025).
Review in BioMed research international, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Research Output and Global Trends in Lassa Fever: A 50-Year Bibliometric Analysis (1975-2025).BioMed research international · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLassa fever poses a significant public health threat, primarily concentrated in West Africa. This bibliometric study aimed to document research outputs concerning Lassa fever. It analyzes trends in research publication output, the participation of various countries, productive institutions and their collaboration networks, influential funding agencies, predominant research fields, top-tier journals, prolific authors, and keyword frequencies.
methodsLassa fever-related publications published between 1975 and 2025 were retrieved from the Scopus and Web of Science (WoS) databases by using the keywords "Lassa fever," OR "Lassa virus," OR "Lassa hemorrhagic fever," OR "Lassa mammarenavirus," OR "LASV." The retrieved records were restricted to the study period, screened for English language, and further refined to include original research articles. The Scopus and WoS datasets were analyzed independently using Biblioshiny (Bibliometrix package in RStudio Cloud) to evaluate research productivity and trends, including contributions by authors, countries, institutions, and journals, whereas VOSviewer (Van Eck & Waltman, Leiden University, Netherlands) was used for network visualization, construct collaboration, and keyword co-occurrence networks. Country productivity was assessed using the full-counting approach based on authors' institutional affiliations.
resultsFollowing the application of the eligibility criteria, 1776 and 2451 English-language original research articles on Lassa fever from Scopus and WoS databases, respectively, were included in the bibliometric analysis. The findings demonstrated an overall increase in research output during the study period (1975-2025), with publication output peaking in 2024. The United States and Nigeria were the leading contributors to Lassa fever research in both databases. Despite the endemicity of Lassa fever in West Africa, only a few number of other African countries were represented among the top 20 global research contributors. Bernhard-Nocht-Institut für Tropenmedizin and the Centers for Disease Control and Prevention were the most prolific institutions in both databases. The National Institute of Allergy and Infectious Diseases (Scopus) and the US Department of Health and Human Services (WoS) emerged as the leading funding agencies. "Medicine" (Scopus) and "Infectious Diseases" (WoS) were the predominant research fields. The most prolific authors included Günther S., De La Torre J.C., and Garry R.F., whereas the Journal of Virology was the leading publication source in both databases. Keyword analysis identified "Lassa fever" and "Lassa virus" as the most frequent occurring terms.
conclusionThe bibliometric analysis provides an updated, comprehensive historical perspective of progress in Lassa fever research. It also highlighted the pivotal role of diverse stakeholders. However, African research output is disproportionately low in relation to that of other countries, implying a need for increased funding and focus on Lassa fever research for effective prevention and control.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.