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. 2023 Feb 24;13(3):408. doi: 10.3390/jpm13030408

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Map of the global distribution of institutions involved in TB vaccine research. (A) Times cited average per item, publications, and H-index of the top 5 institutions. UL: University of London; SSI: Statens Serum Institute; LSHTM: London School of Hygiene Tropical Medicine; UCT: University of Cape Town; UO: University of Oxford. (B) The inter-agency cooperation relationships from 1995 to 2022. We used the logarithmic likelihood ratio (LLR) to classify the research contents of each organization into six clusters, including cluster#0 in deep blue color, cluster#1 in light blue color, cluster#2 in green color, cluster#3 in yellow color, cluster#4 in red color, and cluster#5 in purple color.