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[Sleeping Sickness: A Cause of False Positive HIV Rapid Diagnostic Tests].

Abstract : Approaching the mechanisms related to false positives HIV rapid diagnostic tests (RDT) in patients with sleeping sickness may help to improve the accuracy of screening for HIV infection in areas endemic for Human African trypanosomiasis (HAT).We report on a patient from Congo who was managed like an AIDS-associated meningoencephalitis, based on a false positive HIV RDT at admission, and eventually received a diagnosis of sleeping sickness. A further retrospective cohort study performed in patients with HAT shows that most of positive HIV RDT obtained prior to treatment for sleeping sickness are false positives. We found that half of them were cleared at the end of treatment course, suggesting an early clearance of some antibodies involved in cross-reactivity.A substantial clearance of HIV RDT false positives occurs during therapy for HAT. In areas where Elisa HIV tests are not readily available, repeating the HIV RDT at the end of therapy may help to identify roughly half of false positives.
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https://hal-unilim.archives-ouvertes.fr/hal-03687324
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Soumis le : vendredi 3 juin 2022 - 11:31:47
Dernière modification le : mardi 7 juin 2022 - 11:58:57

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Julien Bonnet, S Ducroix-Roubertou, Sylvie Rogez, Daniel Ajzenberg, Bertrand Courtioux, et al.. [Sleeping Sickness: A Cause of False Positive HIV Rapid Diagnostic Tests].. Médecine Tropicale et Santé Internationale, Société francophone de médecine tropicale et santé internationale, 2021, 1 (2), ⟨10.48327/mtsibulletin.2021.115⟩. ⟨hal-03687324⟩

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