Academic Journal
Molecular pathogen screening of louse flies (Diptera: Hippoboscidae) from domestic and wild ruminants in Austria.
| Τίτλος: | Molecular pathogen screening of louse flies (Diptera: Hippoboscidae) from domestic and wild ruminants in Austria. |
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| Συγγραφείς: | Peña-Espinoza M; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Em D; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Shahi-Barogh B; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Berer D; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Duscher GG; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria.; Austrian Agency for Health and Food Safety (AGES), Research Services, Vienna, Austria., van der Vloedt L; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Glawischnig W; Austrian Agency for Health and Food Safety (AGES), Institute for Veterinary Disease Control, Innsbruck, Austria., Rehbein S; Boehringer Ingelheim Vetmedica GmbH, Kathrinenhof Research Center, Rohrdorf, Germany., Harl J; Institute of Pathology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Unterköfler MS; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria., Fuehrer HP; Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria. Hans-Peter.Fuehrer@vetmeduni.ac.at. |
| Πηγή: | Parasites & vectors [Parasit Vectors] 2023 Jun 02; Vol. 16 (1), pp. 179. Date of Electronic Publication: 2023 Jun 02. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: BioMed Central Country of Publication: England NLM ID: 101462774 Publication Model: Electronic Cited Medium: Internet ISSN: 1756-3305 (Electronic) Linking ISSN: 17563305 NLM ISO Abbreviation: Parasit Vectors Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: London : BioMed Central |
| Ιατρικοί όροι (MeSH): | Deer*/parasitology , Bartonella*/genetics , Anaplasmataceae*/genetics , Diptera* , Anoplura* , Piroplasmida*, Austria/epidemiology ; Humans ; Animals ; Sheep ; Cattle ; Phylogeny ; Ruminants |
| Περίληψη: | Background: Hippoboscid flies (Diptera: Hippoboscidae), also known as louse flies or keds, are obligate blood-sucking ectoparasites of animals, and accidentally of humans. The potential role of hippoboscids as vectors of human and veterinary pathogens is being increasingly investigated, but the presence and distribution of infectious agents in louse flies is still unknown in parts of Europe. Here, we report the use of molecular genetics to detect and characterize vector-borne pathogens in hippoboscid flies infesting domestic and wild animals in Austria. Methods: Louse flies were collected from naturally infested cattle (n = 25), sheep (n = 3), and red deer (n = 12) across Austria between 2015 and 2019. Individual insects were morphologically identified to species level and subjected to DNA extraction for molecular pathogen screening and barcoding. Genomic DNA from each louse fly was screened for Borrelia spp., Bartonella spp., Trypanosomatida, Anaplasmataceae, Filarioidea and Piroplasmida. Obtained sequences of Trypanosomatida and Bartonella spp. were further characterized by phylogenetic and haplotype networking analyses. Results: A total of 282 hippoboscid flies corresponding to three species were identified: Hippobosca equina (n = 62) collected from cattle, Melophagus ovinus (n = 100) from sheep and Lipoptena cervi (n = 120) from red deer (Cervus elaphus). Molecular screening revealed pathogen DNA in 54.3% of hippoboscids, including infections with single (63.39%), two (30.71%) and up to three (5.90%) distinct pathogens in the same individual. Bartonella DNA was detected in 36.9% of the louse flies. Lipoptena cervi were infected with 10 distinct and previously unreported Bartonella sp. haplotypes, some closely associated with strains of zoonotic potential. DNA of trypanosomatids was identified in 34% of hippoboscids, including the first description of Trypanosoma sp. in H. equina. Anaplasmataceae DNA (Wolbachia spp.) was detected only in M. ovinus (16%), while < 1% of the louse flies were positive for Borrelia spp. and Filarioidea. All hippoboscids were negative for Piroplasmida. Conclusions: Molecular genetic screening confirmed the presence of several pathogens in hippoboscids infesting domestic and wild ruminants in Austria, including novel pathogen haplotypes of zoonotic potential (e.g. Bartonella spp.) and the first report of Trypanosoma sp. in H. equina, suggesting a potential role of this louse fly as vector of animal trypanosomatids. Experimental transmission studies and expanded monitoring of hippoboscid flies and hippoboscid-associated pathogens are warranted to clarify the competence of these ectoparasites as vectors of infectious agents in a One-Health context. (© 2023. The Author(s).) |
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| Grant Information: | Austrian Barcode of Life - Hochschulraum-Strukturmittel Austrian Federal Ministry of Education, Science and Research |
| Contributed Indexing: | Keywords: Barcoding; Bartonella; Hippobosca equina; Hippoboscidae; Keds; Lipoptena cervi; Louse flies; Melophagus ovinus; Ruminants; Vector-borne pathogens |
| Entry Date(s): | Date Created: 20230602 Date Completed: 20230605 Latest Revision: 20230606 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC10236838 |
| DOI: | 10.1186/s13071-023-05810-4 |
| PMID: | 37269018 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1756-3305 |
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| DOI: | 10.1186/s13071-023-05810-4 |