期刊
TICKS AND TICK-BORNE DISEASES
卷 12, 期 6, 页码 -出版社
ELSEVIER GMBH
DOI: 10.1016/j.ttbdis.2021.101810
关键词
Theileria equi; Equine piroplasmosis; Horses; Genotypes; Argentina
资金
- INTA (Instituto Nacional de Tecnologia Agropecuaria)
- Asociacion Cooperadora INTA Rafaela
- Secretaria General de Ciencia y Tecnica [PI 16F/007]
- CONICET (Consejo Nacional de Investigaciones Cientificas y Tecnicas)
This study investigates the presence of Theileria equi in an endemic area of equine piroplasmosis in Corrientes City, Argentina. Molecular detection and characterization of T. equi by the complete 18S rDNA sequence was successfully achieved for the first time in Argentina. Further research on the distribution and heterogeneity of T. equi genotypes in Argentina is essential for the diagnosis, prevention, and treatment of equine piroplasmosis.
To investigate the presence of Theileria equi in an endemic area of equine piroplasmosis 42 horses (Equus caballus) from Corrientes City, Argentina were sampled. Eighty-one percent (34 blood samples) of the analyzed horses were tested positive to the presence of piroplasmid 18S rDNA. All these samples could be identified as T. equi by amplifying the specific EMA-1 (merozoite antigen 1) gene of this species. Phylogenetic analysis of an obtained 18S rDNA complete sequence from one strain resulted in the identification of this sample as T. equi sensu stricto (genotype A). This study presents the first molecular detection and characterization of T. equi by the complete 18S rDNA sequence in Argentina. Based on these results further studies should be carried out to investigate the distribution and heterogeneity of presented genotypes of T. equi in Argentina, which is essential for the diagnosis, prevention and treatment of equine piroplasmosis.
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