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Validation and evaluation of the performance of QIAstat-Dx gastrointestinal panel in pooled stool samples.
Acta Trop
December 2024
Key Laboratory of Diarrhea Disease Detection, Zhuhai International Travel Healthcare Center, Zhuhai 519020, Guangdong, China. Electronic address:
In the current study, the analytical sensitivity, analytical specificity, reproducibility, anti-interferences ability, and clinical performance of the QIAstat-Dx Gastrointestinal Panel (GIP) system were evaluated using pooled stool samples. Results showed that the pooled sample test detected the selected ten targets exclusively, with no cross reaction with any other targets of common enteropathogens. The analytical sensitivity of the pooled sample test on QIAstat-Dx GIP system was 10 CFU/ml for Shigella spp.
View Article and Find Full Text PDFRapid confirmation of autochthonous origin in suspected cases of melioidosis from French overseas departments in the Caribbean and the Indian Ocean by PCR-high resolution melting (HRM) analysis.
Infect Genet Evol
December 2024
University Paris-Est, Anses, Animal health laboratory, Bacterial zoonosis unit, Maisons-Alfort, France. Electronic address:
Burkholderia pseudomallei, a soil-borne bacterium that causes melioidosis, endemic in South and Southeast Asia and northern Australia, is now emerging in new regions. Since the 1990s, cases have been reported in French overseas departments, including Martinique and Guadeloupe in the Caribbean, and Reunion Island and Mayotte in the Indian Ocean, suggesting a local presence of the bacterium. Our phylogenetic analysis of 111 B.
View Article and Find Full Text PDFFatal dengue virus infection in an unvaccinated traveler.
Eur J Clin Microbiol Infect Dis
December 2024
Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Dengue is an increasing threat to individuals living in or visiting endemic countries. Effective vaccines have become available, but their use in travelers is typically only recommended to individuals with documented prior infection. We present a fatal case of severe dengue in an unvaccinated traveler without known prior dengue virus infection but longitudinal serologic and molecular evidence for secondary infection.
View Article and Find Full Text PDFNew dengue vaccine for UK travellers: recommended only for those with a previous infection.
Lancet Microbe
December 2024
Department of Virology, University College London Hospitals, London, UK; Rare and Imported Pathogens Laboratory, UK Health Security Agency, Porton Down, UK.
Multiplex sample-sparing assay for detecting type-specific antibodies to Zika and dengue viruses: an assay development and validation study.
Lancet Microbe
December 2024
Department of Microbiology and Immunology, University of North Carolina School of Medicine, Chapel Hill, NC, USA. Electronic address:
Background: Serology for dengue viruses (DENV) and Zika virus (ZIKV) has been hindered by antibody cross-reactivity, which limits the utility of these tests for surveillance and assessment of sero-status. Our aim was to develop a multiplexed IgG-based assay with increased accuracy to assess the history of previous DENV and ZIKV infections.
Methods: We developed and assessed the analytical performance of a sample-sparing, multiplexed, microsphere-based serological assay using domain III of the envelope protein (EDIII) of DENV serotypes 1-4 and ZIKV, the most variable region between each virus.
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