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Braga ÍA, Taques IIGG, Grontoski EC, de Oliveira Dias IS, Pereira NA, de Souza Ramos DG, Dantas-Torres F, de Aguiar DM. Exposure of Domestic Cats to Distinct Ehrlichia canis TRP Genotypes. Vet Sci 2021; 8:vetsci8120310. [PMID: 34941837 PMCID: PMC8707923 DOI: 10.3390/vetsci8120310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 11/16/2022] Open
Abstract
Cats naturally exposed to Ehrlichia canis have been described in different regions of the world, but little is known about the genotypes associated with infection in these animals. To detect E. canis-specific antibodies and investigate the E. canis TRP genotypes in cats, serum samples from 76 domestic cats reactive to crude E. canis antigens by the indirect fluorescence antibody test (IFAT) were analyzed by ELISA, using E. canis-specific peptides (i.e., TRP19 and TRP36 /BR/US/CR). Of these, 25 (32.9%) cats reacted to at least one TRP peptide, confirming their specific exposure to E. canis. Eighteen (23.7%) cats reacted to TRP19, 15 (19.8%) to BRTRP36, and 11 (14.5%) to USTRP36, but none of them reacted to CRTRP36. Eight (10.5%) cats reacted to TRP19 but not to any TRP36 genotype, demonstrating the possible existence of a new E. canis genotype infecting felines. Nevertheless, this study provides the first report of anti-E. canis-specific antibodies in domestic cats.
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Affiliation(s)
- Ísis Assis Braga
- Veterinary Medicine College, Basic Unit of Bioscience, Mineiros University Center, 22nd Street s/n, Mineiros 75833-130, Goiás, Brazil;
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
- Laboratory of Veterinary Pathology and Parasitology, Academic Unit of Agricultural Sciences, Federal University of Jataí, Jataí 75801-615, Goiás, Brazil;
| | - Isis Indaiara Gonçalves Granjeiro Taques
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
| | - Estefânia Crivelatti Grontoski
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
| | - Ingrid Savino de Oliveira Dias
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
| | - Nathalia Assis Pereira
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
| | - Dirceu Guilherme de Souza Ramos
- Laboratory of Veterinary Pathology and Parasitology, Academic Unit of Agricultural Sciences, Federal University of Jataí, Jataí 75801-615, Goiás, Brazil;
| | - Filipe Dantas-Torres
- Department of Immunology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation, Professor Moraes Rego Avenue s/n, Recife 50670-420, Pernambuco, Brazil;
| | - Daniel Moura de Aguiar
- Virology and Rickettsioses Laboratory, Department of Clinical Veterinary Medicine, Veterinary Medicine College, Federal University of Mato Grosso, Fernando Correa da Costa Avenue 2367, Cuiabá 78060-900, Mato Grosso, Brazil; (I.I.G.G.T.); (E.C.G.); (I.S.d.O.D.); (N.A.P.)
- Correspondence:
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