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Kinetics of Dengue Non-Structural Protein 1 Antigen and IgM and IgA Antibodies in Capillary Blood Samples from Confirmed Dengue Patients

Abstract : Large-scale epidemiological surveillance of dengue in the field and dengue patient management require simple methods for sample collection, storage, and transportation as well as effective diagnostic tools. We evaluated the kinetics of three biological markers of dengue infection-non-structural protein 1 (NS1) antigen, immunoglobulin M (IgM), and IgA-in sequential capillary blood samples collected from fingertips of confirmed dengue patients. The overall sensitivities and specificities of the tests were 96% and 100%, respectively, for NS1, 58.1% and 100%, respectively, for IgM, and 33% and 100%, respectively, for IgA. During the acute phase of the disease, NS1 was the best marker of dengue infection, with a sensitivity of 98.7%, whereas from day 5, all three markers exhibited relevant levels of sensitivity. This first descriptive study of the kinetics of biological markers of dengue in capillary blood samples confirms the usefulness of this biological compartment for dengue diagnosis and argues for its exploitation in community-level and remote settings.
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https://hal-riip.archives-ouvertes.fr/pasteur-02197619
Contributor : Vincent Lacoste <>
Submitted on : Tuesday, July 30, 2019 - 2:59:20 PM
Last modification on : Friday, October 16, 2020 - 10:16:02 AM

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Severine Matheus, Thai Binh Pham, Bhetty Labeau, Vu Thi Que Huong, Vincent Lacoste, et al.. Kinetics of Dengue Non-Structural Protein 1 Antigen and IgM and IgA Antibodies in Capillary Blood Samples from Confirmed Dengue Patients. American Journal of Tropical Medicine and Hygiene, American Society of Tropical Medicine and Hygiene, 2014, 90 (3), pp.438-443. ⟨10.4269/ajtmh.13-0458⟩. ⟨pasteur-02197619⟩

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