A novel non-invasive diagnostic sampling technique for cutaneous leishmaniasis
File(s)
Author(s)
Type
Journal Article
Abstract
Accurate diagnosis of cutaneous leishmaniasis (CL) is important for chemotherapy and epidemiological studies. Common approaches for Leishmania detection involve the invasive collection of specimens for direct identification of amastigotes by microscopy and the culturing of promastigotes from infected tissues. Although these techniques are highly specific, they require highly skilled health workers and have the inherent risks of all invasive procedures, such as pain and risk of bacterial and fungal super-infection. Therefore, it is essential to reduce discomfort, potential infection and scarring caused by invasive diagnostic approaches especially for children. In this report, we present a novel non-invasive method, that is painless, rapid and user-friendly, using sequential tape strips for sampling and isolation of DNA from the surface of active and healed skin lesions of CL patients. A total of 119 patients suspected of suffering from cutaneous leishmaniasis with different clinical manifestations were recruited and samples were collected both from their lesions and from uninfected areas. In addition, 15 fungal-infected lesions and 54 areas of healthy skin were examined. The duration of sampling is short (less than one minute) and species identification by PCR is highly specific and sensitive. The sequential tape stripping sampling method is a sensitive, non-invasive and cost-effective alternative to traditional diagnostic assays and it is suitable for field studies as well as for use in health care centers.
Date Issued
2017-07
Date Acceptance
2017-06-26
Citation
PLoS Neglected Tropical Diseases, 2017, 11 (7)
ISSN
1935-2727
Publisher
Public Library of Science
Journal / Book Title
PLoS Neglected Tropical Diseases
Volume
11
Issue
7
Copyright Statement
© 2017 Taslimi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Subjects
Science & Technology
Life Sciences & Biomedicine
Infectious Diseases
Parasitology
Tropical Medicine
REAL-TIME PCR
AMERICAN TEGUMENTARY LEISHMANIASIS
CLINICAL-SAMPLES
NEW-WORLD
SWAB
PARASITES
LESIONS
PROBES
SKIN
Publication Status
Published
Article Number
e0005750
Date Publish Online
2017-07-13