Occurrence of Babesia species in captive reindeer (Rangifer tarandus) in Germany

Two cases of acute babesiosis in captive reindeer (Rangifer tarandus) in two German zoos in 2009 and 2012 triggered this study to investigate the occurrence and species diversity of Babesia parasites infecting reindeer in different zoos and deer parks in Germany. Between June and December 2013, bloo...

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Bibliographic Details
Published in:Veterinary Parasitology
Main Authors: Wiegmann, Lisa, Silaghi, Cornelia, Obiegala, Anna, Karnath, Carolin, Langer, Sandra, Ternes, Kerstin, Kämmerling, Jens, Osmann, Christine, Pfeffer, Martin
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2015
Subjects:
Institute of Parasitology
570 Life sciences
biology
610 Medicine & health
600 Technology
Babesia spp.
Germany
Reindeer
Rangifer
Rangifer tarandus
Online Access:https://www.zora.uzh.ch/id/eprint/111498/
https://www.zora.uzh.ch/111498
https://doi.org/10.1016/j.vetpar.2015.04.026
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Summary:Two cases of acute babesiosis in captive reindeer (Rangifer tarandus) in two German zoos in 2009 and 2012 triggered this study to investigate the occurrence and species diversity of Babesia parasites infecting reindeer in different zoos and deer parks in Germany. Between June and December 2013, blood samples were taken from 123 clinically inapparent reindeer from 16 different facilities. Samples were tested for the presence of Babesia species DNA by conventional PCR and sequence analysis of part of the 18S rRNA gene. Also, Giemsa-stained smears of reindeer blood samples were examined for parasitaemia by light microscopy. The overall PCR-prevalence in blood samples was 23.6% (n=29). Comparison of sequenced amplicons with GenBank entries possibly revealed up to five different Babesia species: B. venatorum (n=19), B. capreoli (n=2) and B. capreoli-like (n=4), B. odocoilei-like (n=2) and B. divergens (n=1), while one sample turned out to be a Theileria sp. Out of the 16 facilities in the study, 12 housed at least one positive animal. In Giemsa-stained blood smears, intra-erythrocytic Babesia parasites were detected in samples of three reindeer from three locations. The high prevalence of Babesia infections implicates babesiosis to be a relevant infectious disease threat for captive reindeer in Germany. Consequently, reindeer with clinical signs compatible to those of acute babesiosis should either be tested for the presence of Babesia spp. DNA or blood smears should be examined for parasitaemia.

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