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Dogs as Reservoirs for Leishmania braziliensis

Centers for Disease Control and Prevention
Publication Date
DOI: 10.3201/eid1702.091823
  • Letters To The Editor
  • Letter
  • Keywords: Dogs
  • Leishmania
  • Leishmaniasis
  • Infection
  • Reservoirs
  • Zoonoses
  • Parasites
  • Letter


Letters.indd LETTERS based on the consideration that R. ae- schlimannii is usually found in ticks of the genus Hyalomma, primarily in H. marginatum (1). Therefore, 1 of the PCRs amplifi ed a fragment of the Hya- lomma tick mitochondrial cytochrome oxidase I gene and the other a fragment of the internal transcribed spacer 2 (7). The ITS2 fragment displayed the highest (99%) similarity with the re- spective fragment of H. marginatum, H. dromedarii, H. truncatum, and H. lusitanicum. Cytochrome oxidase sub- unit I fragment was 99% identical to H. marginatum, H. dromedarii, and H. truncatum. The 16S RNA fragment was 98% identical to H. marginatum; its identity to the second closest se- quence belonging to H. lusitanicum was 96%. Earlier, R. aeschlimannii had been detected in sub-Saharan and North Af- rica, southern Europe, and southwest- ern Russia (8). Therefore, the area of Zerbst, the middle of Germany, marks the northernmost point of R. aeschli- mannii detection. Hyalomma spp. ticks are distrib- uted in Africa, the Mediterranean cli- matic zone of southern Europe, and in Asia. The only documented Hyalomma spp. tick in Germany was found on a human in the southern part of the coun- try (Lake Constance area) in May 2006, but the possibility of tick transportation from Spain was not ruled out (9). Acrocephalus scirpaceus birds are migratory birds and live in central Europe from April to October and win- ter in sub-Saharan Africa in the region inhabited by Hyalomma spp. ticks. Therefore, it is reasonable to suggest that the Hyalomma spp. ticks that we examined had been transported by the birds from Africa. The fact that a ran- domly caught bird was infested with R. aeshlimannii –infected ticks is sug- gestive of the intensive stream of new pathogens transported through Europe by migrating birds. The fi rst possible implication of a bird as a vector of in- fected ticks was proposed for Hyalom- ma spp. ticks infected by R. sibirica mongolitimonae (10). U

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