ReviewTropical diseases, travel medicine and vaccines2026
Travel microbiota: a novel frontier in travel medicine exploring microbial shifts across transportation modes.
Review in Tropical diseases, travel medicine and vaccines, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
backgroundBetween 2010 and 2019, international travel increased by approximately 52.2%, highlighting the world's dependence on transportation for global connectivity. Although travel enhances global interactions, it also poses risks to public health through the potential transmission of diseases. The rapid global transmission of infectious diseases, exemplified by the outbreaks of COVID-19 and Zika virus, underscores the critical need for in-depth research into travel-associated disease dissemination. When individuals travel, they are exposed to a variety of diverse microbial environments, which can affect their healthy microbiome. In this review, we introduce the concept of "travel microbiota" to encapsulate the dynamic shifts in human microbial communities induced by travel across different transportation modes. This disruption can affect metabolic and immune functions and potentially facilitate the spread of diseases. Given these implications, it is crucial to investigate how different modes of transportation affect the human microbiota. Our study reviews the impact of travel on the human microbiota, highlighting differences across transportation modes. The objective is to establish a framework for understanding travel health and the role of microbiota in managing travel-related health risks. A comprehensive understanding of this relationship is essential for developing preventive strategies to safeguard and restore the human microbiota.
methodsTo provide the specific content, relevant publications were identified on Google Scholar, PubMed, and Science Direct using specific keywords such as dysbiosis, gut, health, microbiome, microbiota, pathogens, travel, and transportation. We did not add any limits to the publication date during the inclusion of papers. However, it is noteworthy that the initial reports, including the aforementioned keywords, have been published starting from 2015.
conclusionTravel has a profound impact on the human microbiota, and it is essential to consider the implications associated with various modes of transportation. Traveling through various modes of transportation, such as roadways, airways, and maritime, has significantly influenced human microbiota. Moreover, it acts as a dynamic interface for microbial exchange driving rapid shift in microbial diversity, community convergence, and the diversification of resistant genes. However, the underlying mechanism of these changes remains elusive. By integrating evidence across multiple modes of transportation, this review highlights travel as an underrecognized determinant of microbiome variability and introduces the term "Travel microbiota". Moreover, this review is pivotal for understanding the ways in which travel alters microbial diversity and developing effective interventions. It is imperative to conduct future research that focuses on conducting large-scale longitudinal studies to assess the effects of traveling on microbial composition and to develop potential preventive measures.
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