We present our surveillance results on imported dengue cases in Taiwan during 2008-2010. A total of 734 imported dengue patients were identified. The travelers were arriving from 18 countries, including Southeast Asia, the Indian subcontinent, South Pacific islands, and Latin America. Gene sequences from 358 dengue virus (DENV) isolates were used to perform phylogenetic analyses, thus, providing an updated view of the geographic distribution and dynamic transmission of DENV strains circulating in these countries. Our results suggest that the DENV-1 genotype I and DENV-2 Cosmopolitan genotype comprise the predominant DENV strains circulating in Southeast Asian countries. The DENV-3 Genotype III strain was found to be newly emerging in several Southeast Asian countries, however, the Asian genotype 2 and the Asian/American genotype of DENV-2 strains appeared to be less prevalent in Southeast Asia. Furthermore, imported dengue viruses are representative of the overall patterns of serotype/genotype frequencies of dengue outbreaks that occurred in Taiwan.
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http://dx.doi.org/10.4269/ajtmh.2012.11-0666 | DOI Listing |
BMC Infect Dis
January 2025
EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, nº 135, Porto, 4050 - 600, Portugal.
Background: The incidence of mosquito-borne infections has increased worldwide. Mainland Portugal's characteristics might favour the (re)emergence of mosquito-borne diseases. This study aimed to characterize the spatial distribution of vectors and notification rates of imported cases of mosquito-borne infections in mainland Portugal and demarcate the areas where these geographies overlap.
View Article and Find Full Text PDFAm J Trop Med Hyg
December 2024
Department of Pathogenic Biology, Basic Medical College, Naval Medical University, Shanghai, China.
Rapidly identifying Anopheles-carrying malaria parasites is crucial for imported malaria prevention. However, suitable methods still lack quick detection in limited-resource situations. In this study, disc microfluidic isothermal amplification integrating loop-mediated isothermal amplification (LAMP) and microfluidic chip technology were applied to develop rapid and precise detection with low resource requirements.
View Article and Find Full Text PDFLancet Microbe
December 2024
Department of Virology, University College London Hospitals, London, UK; Rare and Imported Pathogens Laboratory, UK Health Security Agency, Porton Down, UK.
New Microbes New Infect
December 2024
University of Zürich, Epidemiology, Biostatistics and Prevention Institute, Hirschengraben 84, 8001, Zürich, Switzerland.
Virus Res
January 2025
Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif, 21944, Saudi Arabia. Electronic address:
Exacerbated by the rise of global warming due to climate change, as well as ease of international travel and mass migration, the dengue virus infection remains of particular economic and global concern. Of note, the emergence of the first case of dengue viral infection occurred in Saudi Arabia in the 1990s, and since then there has been a steady rise in the number of cases. Moreover, the arrival of imported dengue virus variants poses a significant challenge to dengue fever surveillance and control efforts within the region, especially as Saudi Arabia attracts millions of religious pilgrims throughout the year.
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