Volume 72, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


The surveillance of prevalent and sand fly species in endemic areas is important for prediction of the risk and expansion of leishmaniasis. In this study, we developed a polymerase chain reaction (PCR)-based method for detection of minicircle DNA within individual sand flies. Using this method, we detected minicircle DNA in 6 (3.3%) of 183 sand flies, while 5 (3.5%) of 143 were positive for promastigotes in the same areas by microscopic examination. The species were identified as by nucleotide sequencing of the cytochrome b gene. Additionally, all the -positive sand flies were identified as by the restriction enzyme digestion of the PCR-amplified 18S ribosomal RNA gene fragments. Since this combined method is relatively easy and can process a large number of samples, it will be a powerful tool for the rapid identification of prevalent sand fly and species as well as monitoring the infection rate in sand fly populations in endemic areas.


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  • Received : 28 Apr 2004
  • Accepted : 26 Aug 2004

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