Significance of Anaplasma phagocytophilum, Babesia caballi, and Theileria equi as etiologic agents in horses with clinical manifestations from the metropolitan area of Rio De Janeiro, Brazil.
Abstract: Equine Piroplasmosis (EP) and Equine Granulocytic Anaplasmosis (EGA) are diseases that affect horses, transmitted by ixodid ticks, causing a nonspecific febrile syndrome. Equine Piroplasmosis is endemic in Brazil, and most horses are in enzootic stability. Serological and molecular studies carried out on horses in Brazil have shown the presence of Anaplasma phagocytophilum, however, the clinical relevance of this infection has not yet been established. The present study aims to evaluate the importance of Babesia caballi, Theileria equi, and A. phagocytophilum as etiological agents in horses with clinical manifestations suggestive of these diseases in the metropolitan mesoregion of Rio de Janeiro. A total of 45 animals with clinical signs were submitted to DNA extraction followed by qPCR test. Anaplasma phagocytophilum, Neorickettsia risticii and Theileria haneyi were not found in any of the horses with clinical signs, however 62.2% were infected with at least one agent of EP. Theileria equi was the most frequent etiologic agent (35.5%), followed by coinfection (15.5%) and B. caballi (11.2%). These results suggest that A. phagocytophilum has minor clinical importance in the region, while EP is frequently found in symptomatic horses, representing an important differential diagnosis in suspected cases.
© 2024. The Author(s), under exclusive licence to Springer Nature B.V.
Publication Date: 2024-09-21 PubMed ID: 39305438PubMed Central: 9169286DOI: 10.1007/s11250-024-04134-4Google Scholar: Lookup
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- Journal Article
- Animal Health
- Clinical Signs
- Disease
- Disease Diagnosis
- Disease Etiology
- Disease Prevalence
- Equine Diseases
- Equine Health
- Equine Medicine
- Equine Protozoal Myeloencephalitis
- Horses
- Infection
- Infectious Disease
- Molecular biology
- Pathogenesis
- Pathogens
- Theileria equi
- Tick-Borne Diseases
- Ticks
- Veterinary Medicine
- Veterinary Research
- Veterinary Science
Cite This Article
APA
de Albuquerque CV, da Silva Andrade M, de Freitas MS, Paulino PG, Santos HA, de Tarso Landgraf Botteon P.
(2024).
Significance of Anaplasma phagocytophilum, Babesia caballi, and Theileria equi as etiologic agents in horses with clinical manifestations from the metropolitan area of Rio De Janeiro, Brazil.
Trop Anim Health Prod, 56(8), 268.
https://doi.org/10.1007/s11250-024-04134-4 Publication
Researcher Affiliations
- Postgraduate Program in Veterinary Medicine, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, Rio de Janeiro, Brazil. vieira.celina91@gmail.com.
- Federal Rural University of Rio de Janeiro (UFRRJ), Undergraduate in Veterinary Medicine, Seropédica, Rio de Janeiro, Brazil.
- Postgraduate Program in Veterinary Medicine, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, Rio de Janeiro, Brazil.
- Department of Epidemiology and Public Health, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, Rio de Janeiro, Brazil.
- Department of Epidemiology and Public Health, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, Rio de Janeiro, Brazil. huarrissonazevedo9@gmail.com.
- Department of Veterinary Medicine and Surgery, Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica, Rio de Janeiro, Brazil. paulobotteon@gmail.com.
MeSH Terms
- Horses
- Animals
- Horse Diseases / parasitology
- Horse Diseases / microbiology
- Horse Diseases / epidemiology
- Brazil / epidemiology
- Theileria / isolation & purification
- Babesia / isolation & purification
- Anaplasma phagocytophilum / isolation & purification
- Theileriasis / epidemiology
- Theileriasis / parasitology
- Babesiosis / epidemiology
- Babesiosis / parasitology
- Ehrlichiosis / veterinary
- Ehrlichiosis / epidemiology
- Ehrlichiosis / microbiology
- Male
- Female
Grant Funding
- 001 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- 313753/2021-0 / Conselho Nacional de Desenvolvimento Científico e Tecnológico
- E_27/2021 / Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
- E-26/201.342/2021 / Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
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