Diagnostic Performance of Three rK39 Rapid Diagnostic Tests and Two Direct Agglutination Tests for the Diagnosis of Visceral Leishmaniasis in Southern Iran.
Journal
Journal of tropical medicine
ISSN: 1687-9686
Titre abrégé: J Trop Med
Pays: Egypt
ID NLM: 101524194
Informations de publication
Date de publication:
2022
2022
Historique:
received:
16
09
2021
accepted:
10
03
2022
entrez:
22
4
2022
pubmed:
23
4
2022
medline:
23
4
2022
Statut:
epublish
Résumé
To evaluate the diagnostic performance of five alternative serodiagnostic tests, serum samples from 100 confirmed visceral leishmaniasis (VL) patients, 197 healthy endemic individuals, and 58 non-VL patients living in southern Iran were compared. The VL patients were defined as individuals with a positive result of the immunofluorescent antibody test (IFAT), having clinical signs and symptoms and appropriate response to treatment. The index tests were two direct agglutination tests, DAT-ITM (Institute of Tropical Medicine, Antwerp, Belgium) and DAT-KIT (Royal Tropical Institute, Amsterdam, The Netherlands), and three rapid diagnostic tests (RDTs), Kalazar Detect (InBios International Inc., USA), IT Leish (Bio-Rad, catalog 710124), and Leishmania test (Cypress Diagnostic Company, Belgium). Sensitivities of DAT-ITM and DAT-KIT were low, respectively, 56% and 59%, while specificities were acceptable, respectively, 98% and 93%. Observed sensitivities and specificities of RDTs were higher (71%, 81%, 70% and 99%, 99%, 98% for Kalazar Detect, IT Leish, and Leishmania test, respectively). Even with a maximum sensitivity of 81%, RDTs missed almost one-fifth of VL patients that were positive in IFAT. We conclude that RDTs in VL patients do not possess adequate performance in southern Iran and require some improvement, but they can still be helpful in the diagnosis and screening of the disease in this region due to their high specificity and speed.
Identifiants
pubmed: 35449755
doi: 10.1155/2022/3569704
pmc: PMC9017523
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3569704Informations de copyright
Copyright © 2022 Zahra Rezaei et al.
Déclaration de conflit d'intérêts
The authors declare that they have no conflicts of interest.
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