Occurrence of Leishmania sp. in cutaneous lesions of horses in Central Europe.
The present report describes a novel etiological agent of cutaneous leishmaniasis in horses that, at least for some cases, sporadically appeared as autochthonous infections in geographically distant regions of Germany and Switzerland. The infection was initially diagnosed upon clinical and immunohistological findings. Subsequent comparative sequence analysis of diagnostic PCR products from the internal transcribed spacer 1 (ITS1) of ssrRNA classified the respective isolates as neither Old World nor New World Leishmania species. However, four isolates subjected to molecular analyses all exhibited a close phylogenetic relationship to Leishmania sp. siamensis, an organism recently identified in a visceral leishmaniasis patient from Thailand. Future investigations will demonstrate if this form of leishmaniasis represents an emerging, and perhaps zoonotic, disease of European, or even global, importance.
Müller
Norbert
N
Institute of Parasitology, Vetsuisse Faculty, University of Berne, Länggass-Str. 122, CH-3012 Berne, Switzerland. nmueller@ipa.unibe.ch
Welle
Monika
M
Lobsiger
Lisbeth
L
Stoffel
Michael H
MH
Boghenbor
Kathrin Kühni
KK
Hilbe
Monika
M
Gottstein
Bruno
B
Frey
Caroline F
CF
Geyer
Claudia
C
von Bomhard
Wolf
W
D000818:Animals; D001483:Base Sequence; D005060:Europe / Q000453:epidemiology; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology* / Q000469:parasitology; D006736:Horses; D007891:Leishmania / Q000145:classification / Q000502:physiology*; D007896:Leishmaniasis / Q000453:epidemiology* / Q000469:parasitology / Q000662:veterinary*; D008297:Male; D008969:Molecular Sequence Data; D010802:Phylogeny; D016415:Sequence Alignment; D012876:Skin Diseases, Parasitic / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*