1921
Volume 101, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract.

American tegumentary leishmaniasis is an endemic anthropozoonosis undergoing expansion on the American continent. The disease is caused by several species and it is manifested as cutaneous and mucocutaneous leishmaniasis. In this study, we evaluate the viability of high-resolution melt polymerase chain reaction (HRM-PCR) analysis to differentiate four closely related species as a routine tool for the diagnosis of leishmaniasis. For this purpose, biopsy specimens from cutaneous and mucocutaneous lesions were taken from 132 individuals from endemic and non-endemic areas for leishmaniasis. Each sample was processed for parasitological, histopathological, and molecular analysis. Positive biopsy samples were analyzed by HRM-PCR of a 144-bp heat-shock protein (hsp70) gene fragment, and new cases were confirmed by sequencing. Of the 132 samples analyzed, 36 (27%) were positive for spp., of which 86% were from cutaneous lesions and 14% from mucocutaneous lesions. We identified () (84%), () (13%), and () (3%) in cutaneous lesions, and () (40%), () (20%), () (20%), and () (20%) in mucocutaneous lesions. The main purpose of this research was to report for the first time in Paraguay the presence of () and () in patients with cutaneous and mucocutaneous lesions, using the HRM-PCR technique. In addition, we report the presence of additional new cases of () in cutaneous lesions.

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  • Received : 02 Nov 2018
  • Accepted : 05 Jul 2019
  • Published online : 12 Aug 2019

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