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Peer-reviewedCC BY-NC-NDTropical diseases, travel medicine and vaccines

Evidence of dengue virus exposure among Iranian seafarers: a brief seroprevalence report from Southern Iran.

  • Amirhossein Darabi1
  • Mahboobeh Hayati1
  • Golnaz Hayatdavoudi2
  • Omid Gharibi1
  • Sahand Khajeheian3
  • Mohsen Keshavarz4
4 affiliations
  1. 1Department of Virology, The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
  2. 2Department of Microbiology and Parasitology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran.
  3. 3Student Research and Technology Committee, Bushehr University of Medical Sciences, Bushehr, Iran.
  4. 4Department of Virology, The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran. [email protected].
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Abstract

Introduction

Dengue virus (DENV) is an emerging public health concern in Iran. Frequent maritime travel between southern Iranian ports and neighboring countries with reported dengue transmission may facilitate the introduction of DENV into Iran. Therefore, this study aimed to determine the seroprevalence of DENV among Iranian seafarers.Methods

We conducted a cross-sectional serosurvey among 270 seafarers in Bushehr Province. Serum samples were tested for DENV IgM/IgG using ELISA. Travel history and demographics were collected via questionnaires.Results

Serological testing identified 7 DENV-seropositive individuals (2.6%), including 2 IgM-positive and 5 IgG-positive participants. Seropositivity was higher among recent travelers than among past travelers (5.6% vs. 1.5%). Positive cases were detected in Bushehr (5.0%), Asaluyeh (16.7%), Genaveh (5.0%), Kangan (1.7%), and Dayyer (1.3%), whereas no seropositive cases were identified among participants employed in Deylam.Conclusions

Although DENV seroprevalence remained low among Iranian seafarers, evidence of both recent and past infections indicates that occupational maritime travel may contribute to DENV exposure. Given the strategic role of seafarers in cross-border movement, periodic serological surveillance of this occupational group may facilitate early detection of DENV introduction and strengthen public health preparedness in southern Iran.

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Cite

BibTeXRIS
BibTeX
@article{darabi2026evidence,
  title = {{Evidence of dengue virus exposure among Iranian seafarers: a brief seroprevalence report from Southern Iran.}},
  author = {Amirhossein Darabi and Mahboobeh Hayati and Golnaz Hayatdavoudi and Omid Gharibi and Sahand Khajeheian and Mohsen Keshavarz},
  journal = {Tropical diseases, travel medicine and vaccines},
  year = {2026},
  month = oct,
  doi = {10.1186/s40794-026-00323-1},
  url = {https://europepmc.org/article/MED/42972479},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Evidence of dengue virus exposure among Iranian seafarers: a brief seroprevalence report from Southern Iran.
AU  - Amirhossein Darabi
AU  - Mahboobeh Hayati
AU  - Golnaz Hayatdavoudi
AU  - Omid Gharibi
AU  - Sahand Khajeheian
AU  - Mohsen Keshavarz
PY  - 2026
DA  - 2026/10/31
JO  - Tropical diseases, travel medicine and vaccines
DO  - 10.1186/s40794-026-00323-1
UR  - https://europepmc.org/article/MED/42972479
AB  - Introduction  Dengue virus (DENV) is an emerging public health concern in Iran. Frequent maritime travel between southern Iranian ports and neighboring countries with reported dengue transmission may facilitate the introduction of DENV into Iran. Therefore, this study aimed to determine the seroprevalence of DENV among Iranian seafarers.Methods  We conducted a cross-sectional serosurvey among 270 seafarers in Bushehr Province. Serum samples were tested for DENV IgM/IgG using ELISA. Travel history and demographics were collected via questionnaires.Results  Serological testing identified 7 DENV-seropositive individuals (2.6%), including 2 IgM-positive and 5 IgG-positive participants. Seropositivity was higher among recent travelers than among past travelers (5.6% vs. 1.5%). Positive cases were detected in Bushehr (5.0%), Asaluyeh (16.7%), Genaveh (5.0%), Kangan (1.7%), and Dayyer (1.3%), whereas no seropositive cases were identified among participants employed in Deylam.Conclusions  Although DENV seroprevalence remained low among Iranian seafarers, evidence of both recent and past infections indicates that occupational maritime travel may contribute to DENV exposure. Given the strategic role of seafarers in cross-border movement, periodic serological surveillance of this occupational group may facilitate early detection of DENV introduction and strengthen public health preparedness in southern Iran.
SN  - 2055-0936
ER  -