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Fernandes TDO, Duarte MA, Furtado AP, Scalon MC, Paludo GR. New insights on the phylogeography of Hepatozoon canis in Brazil. Parasitol Res 2024; 123:123. [PMID: 38315237 DOI: 10.1007/s00436-024-08147-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
This study aimed to molecularly characterize the Hepatozoon spp. infecting domestic and wild dogs in Brazil. A total of 22 whole blood samples tested positive for Hepatozoon spp., and five samples were sequenced for the 18S rDNA gene from H. canis after PCR amplification with four primer sets. Phylogenetic analysis using Bayesian inference showed that the three H. canis isolates from domestic dogs were not monophyletic; however, they were more closely related to each other than to other H. canis sequences. The isolate from the hoary fox (Lycalopex vetulus) was phylogenetically more distant. Two haplotype networks were constructed, identifying 10 haplotypes of H. canis in Brazil, with H10 constituting the largest group. It contains nine isolates, including three from domestic dogs. The H5 haplotype grouped the sequence of L. vetulus with two additional sequences from hosts Tapirus terrestris and L. vetulus, representing the sole haplotype with wild hosts. Bayesian analysis suggested the possible existence of two genetic groups of H. canis in Brazil, indicating gene flow of this agent within the country. These findings contribute valuable insights for a more comprehensive understanding of the molecular diversity of Hepatozoon spp. in Brazil and may help in the development of effective control measures.
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Affiliation(s)
- Thais de Oliveira Fernandes
- Laboratory of Veterinary Clinical Pathology, College of Agronomy and Veterinary Medicine, FAV/UnB, University of Brasilia, CEP, Darcy Ribeiro University Campus, ICC Center - North Wing, Brasília, Federal District, 70910-900, Brazil
| | - Matheus Almeida Duarte
- Laboratory of Veterinary Clinical Pathology, College of Agronomy and Veterinary Medicine, FAV/UnB, University of Brasilia, CEP, Darcy Ribeiro University Campus, ICC Center - North Wing, Brasília, Federal District, 70910-900, Brazil
| | | | - Marcela Correa Scalon
- Laboratory of Veterinary Clinical Pathology, College of Agronomy and Veterinary Medicine, FAV/UnB, University of Brasilia, CEP, Darcy Ribeiro University Campus, ICC Center - North Wing, Brasília, Federal District, 70910-900, Brazil
| | - Giane Regina Paludo
- Laboratory of Veterinary Clinical Pathology, College of Agronomy and Veterinary Medicine, FAV/UnB, University of Brasilia, CEP, Darcy Ribeiro University Campus, ICC Center - North Wing, Brasília, Federal District, 70910-900, Brazil.
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Ebani VV, Nardoni S, Mancianti F. Arthropod-Borne Pathogens in Wild Canids. Vet Sci 2023; 10:vetsci10020165. [PMID: 36851469 PMCID: PMC9964035 DOI: 10.3390/vetsci10020165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/05/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Wild canids, as well as other wild animal species, are largely exposed to bites by ticks and other hematophagous vectors where the features favoring their presence and spread are found in wooded and semi-wooded areas. Much of the information about arthropod-borne infections concerns domestic and companion animals, whereas data about these infections in wild canids are not exhaustive. The present study is a narrative review of the literature concerning vector-borne infections in wild canids, highlighting their role in the epidemiology of arthropod-borne bacteria and protozoa.
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Affiliation(s)
- Valentina Virginia Ebani
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
- Centre for Climate Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-221-6968
| | - Simona Nardoni
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
| | - Francesca Mancianti
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
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