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Occurrence and diversity of arthropod-transmitted pathogens in red foxes (Vulpes vulpes) in western Austria, and possible vertical (transplacental) transmission of Hepatozoon canis

Published online by Cambridge University Press:  24 August 2017

ADNAN HODŽIĆ ,
NAIKE MROWIETZ ,
RITA CÉZANNE ,
PIA BRUCKSCHWAIGER ,
SYLVIA PUNZ ,
VERENA ELISABETH HABLER ,
VALENTINA TOMSIK ,
JUDIT LAZAR ,
GEORG G. DUSCHER  and
WALTER GLAWISCHNIG
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ADNAN HODŽIĆ
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
NAIKE MROWIETZ
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
RITA CÉZANNE
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
PIA BRUCKSCHWAIGER
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
SYLVIA PUNZ
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
VERENA ELISABETH HABLER
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
VALENTINA TOMSIK
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
JUDIT LAZAR
Affiliation:
Institute for Veterinary Disease Control, Austrian Agency for Health and Food Safety, Technikerstraße 70, 6020 Innsbruck, Austria
GEORG G. DUSCHER
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
WALTER GLAWISCHNIG
Affiliation:
Institute for Veterinary Disease Control, Austrian Agency for Health and Food Safety, Technikerstraße 70, 6020 Innsbruck, Austria
HANS-PETER FUEHRER*
Affiliation:
Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria
*
*Corresponding author: Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria. Email: [email protected]
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Summary

Red fox (Vulpes vulpes) is the most abundant wild canid species in Austria, and it is a well-known carrier of many pathogens of medical and veterinary concern. The main aim of the present study was to investigate the occurrence and diversity of protozoan, bacterial and filarial parasites transmitted by blood-feeding arthropods in a red fox population in western Austria. Blood (n = 351) and spleen (n = 506) samples from foxes were examined by PCR and sequencing and the following pathogens were identified: Babesia canis, Babesia cf. microti (syn. Theileria annae), Hepatozoon canis, Anaplasma phagocytophilum, Candidatus Neoehrlichia sp. and Bartonella rochalimae. Blood was shown to be more suitable for detection of Babesia cf. microti, whilst the spleen tissue was better for detection of H. canis than blood. Moreover, extremely low genetic variability of H. canis and its relatively low prevalence rate observed in this study may suggest that the parasite has only recently been introduced in the sampled area. Furthermore, the data presented here demonstrates, for the first time, the possible vertical transmission of H. canis from an infected vixen to the offspring, and this could explain the very high prevalence in areas considered free of its main tick vector(s).

Keywords

vector-borne pathogensHepatozoon canistransplacental transmissionfoxVulpes vulpesAustria
Type
Research Article
Information
Parasitology , Volume 145 , Issue 3 , March 2018 , pp. 335 - 344
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Copyright
Copyright © Cambridge University Press 2017 

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