Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps

Abstract Background Piroplasmosis are among the most relevant diseases of domestic animals. Babesia is emerging as cause of tick-borne zoonosis worldwide and free-living animals are reservoir hosts of several zoonotic Babesia species. We investigated the epidemiology of Babesia spp. and Theileria sp...

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Main Authors: Stefania Zanet, Anna Trisciuoglio, Elisa Bottero, Isabel Garcia Fernández de Mera, Christian Gortazar, Maria Grazia Carpignano, Ezio Ferroglio
Format: Article
Language:English
Published: BMC 2014-02-01
Series:Parasites & Vectors
Subjects:
Online Access:https://doi.org/10.1186/1756-3305-7-70
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author Stefania Zanet
Anna Trisciuoglio
Elisa Bottero
Isabel Garcia Fernández de Mera
Christian Gortazar
Maria Grazia Carpignano
Ezio Ferroglio
author_facet Stefania Zanet
Anna Trisciuoglio
Elisa Bottero
Isabel Garcia Fernández de Mera
Christian Gortazar
Maria Grazia Carpignano
Ezio Ferroglio
author_sort Stefania Zanet
collection DOAJ
description Abstract Background Piroplasmosis are among the most relevant diseases of domestic animals. Babesia is emerging as cause of tick-borne zoonosis worldwide and free-living animals are reservoir hosts of several zoonotic Babesia species. We investigated the epidemiology of Babesia spp. and Theileria spp. in wild ungulates and carnivores from Northern Italy to determine which of these apicomplexan species circulate in wildlife and their prevalence of infection. Methods PCR amplification of the V4 hyper-variable region of the 18S rDNA of Babesia sp./Theileria sp was carried out on spleen samples of 1036 wild animals: Roe deer Capreolus capreolus (n = 462), Red deer Cervus elaphus (n = 52), Alpine Chamois Rupicapra rupicapra (n = 36), Fallow deer Dama dama (n = 17), Wild boar Sus scrofa (n = 257), Red fox Vulpes vulpes (n = 205) and Wolf Canis lupus (n = 7). Selected positive samples were sequenced to determine the species of amplified Babesia/Theileria DNA. Results Babesia/Theileria DNA was found with a mean prevalence of 9.94% (IC95% 8.27-11.91). The only piroplasms found in carnivores was Theileria annae, which was detected in two foxes (0.98%; IC95% 0.27-3.49). Red deer showed the highest prevalence of infection (44.23%; IC95% 31.6-57.66), followed by Alpine chamois (22.22%; IC95% 11.71-38.08), Roe deer (12.55%; IC95% 9.84-15.89), and Wild boar (4.67%; IC95% 2.69-7.98). Genetic analysis identified Babesia capreoli as the most prevalent piroplasmid found in Alpine chamois, Roe deer and Red deer, followed by Babesia bigemina (found in Roe deer, Red deer and Wild boar), and the zoonotic Babesia venatorum (formerly Babesia sp. EU1) isolated from 2 Roe deer. Piroplasmids of the genus Theileria were identified in Wild boar and Red deer. Conclusions The present study offers novel insights into the role of wildlife in Babesia/Theileria epidemiology, as well as relevant information on genetic variability of piroplasmids infecting wild ungulates and carnivores.
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spelling doaj.art-2419084b6a494919b3fa70a71fe3953a2023-06-04T11:18:53ZengBMCParasites & Vectors1756-33052014-02-01711710.1186/1756-3305-7-70Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian AlpsStefania Zanet0Anna Trisciuoglio1Elisa Bottero2Isabel Garcia Fernández de Mera3Christian Gortazar4Maria Grazia Carpignano5Ezio Ferroglio6Department of Veterinary Sciences, University of TurinDepartment of Veterinary Sciences, University of TurinDepartment of Veterinary Sciences, University of TurinSaBio IREC CSIC UCLM JCCMSaBio IREC CSIC UCLM JCCMComprensorio Alpino Valli Grana e MairaDepartment of Veterinary Sciences, University of TurinAbstract Background Piroplasmosis are among the most relevant diseases of domestic animals. Babesia is emerging as cause of tick-borne zoonosis worldwide and free-living animals are reservoir hosts of several zoonotic Babesia species. We investigated the epidemiology of Babesia spp. and Theileria spp. in wild ungulates and carnivores from Northern Italy to determine which of these apicomplexan species circulate in wildlife and their prevalence of infection. Methods PCR amplification of the V4 hyper-variable region of the 18S rDNA of Babesia sp./Theileria sp was carried out on spleen samples of 1036 wild animals: Roe deer Capreolus capreolus (n = 462), Red deer Cervus elaphus (n = 52), Alpine Chamois Rupicapra rupicapra (n = 36), Fallow deer Dama dama (n = 17), Wild boar Sus scrofa (n = 257), Red fox Vulpes vulpes (n = 205) and Wolf Canis lupus (n = 7). Selected positive samples were sequenced to determine the species of amplified Babesia/Theileria DNA. Results Babesia/Theileria DNA was found with a mean prevalence of 9.94% (IC95% 8.27-11.91). The only piroplasms found in carnivores was Theileria annae, which was detected in two foxes (0.98%; IC95% 0.27-3.49). Red deer showed the highest prevalence of infection (44.23%; IC95% 31.6-57.66), followed by Alpine chamois (22.22%; IC95% 11.71-38.08), Roe deer (12.55%; IC95% 9.84-15.89), and Wild boar (4.67%; IC95% 2.69-7.98). Genetic analysis identified Babesia capreoli as the most prevalent piroplasmid found in Alpine chamois, Roe deer and Red deer, followed by Babesia bigemina (found in Roe deer, Red deer and Wild boar), and the zoonotic Babesia venatorum (formerly Babesia sp. EU1) isolated from 2 Roe deer. Piroplasmids of the genus Theileria were identified in Wild boar and Red deer. Conclusions The present study offers novel insights into the role of wildlife in Babesia/Theileria epidemiology, as well as relevant information on genetic variability of piroplasmids infecting wild ungulates and carnivores.https://doi.org/10.1186/1756-3305-7-70PiroplasmosisBabesiaTheileriaPCRWildlifeItaly
spellingShingle Stefania Zanet
Anna Trisciuoglio
Elisa Bottero
Isabel Garcia Fernández de Mera
Christian Gortazar
Maria Grazia Carpignano
Ezio Ferroglio
Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
Parasites & Vectors
Piroplasmosis
Babesia
Theileria
PCR
Wildlife
Italy
title Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
title_full Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
title_fullStr Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
title_full_unstemmed Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
title_short Piroplasmosis in wildlife: Babesia and Theileria affecting free-ranging ungulates and carnivores in the Italian Alps
title_sort piroplasmosis in wildlife babesia and theileria affecting free ranging ungulates and carnivores in the italian alps
topic Piroplasmosis
Babesia
Theileria
PCR
Wildlife
Italy
url https://doi.org/10.1186/1756-3305-7-70
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