Journal
ACTA TROPICA
Volume 103, Issue 1, Pages 69-79Publisher
ELSEVIER
DOI: 10.1016/j.actatropica.2007.05.008
Keywords
leishmania infantum; MON-24; Morocco; genotyping; canine; reservoir
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As in the countries edging the Mediterranean basin, Leishmania infantum zymodeme MON-1 is the main causative agent of visceral leishmaniasis in Morocco, where visceral leishmaniasis is most active in the North-Eastern slopes of the Rif mountains. The dog was confirmed to be the main reservoir of L. infantum MON-1, while the reservoir of L. infantum MON-24 causative agent of both infantile visceral leishmaniasis and cutaneous leishmaniasis has not yet been identified. Here we report the first detection of this last zymodeme in a dog in Morocco. The isolated strain was first identified by the use of genotyping markers and confirmed by isoenzyme analysis. Phylogenetic analysis with the use of concatenated sequences from 26 Leishinania donovani complex strains revealed strong geographical correlation with the MON-24 strain from Morocco clustering with other East African strains whereas two other MON-24 strains clustered with L. infantum strains. Interestingly, the two distinct populations of MON-24 identified with the use of genotyping markers cannot be distinguished by multilocus enzyme electrophoresis. (c) 2007 Elsevier B.V. All rights reserved.
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