We report an outbreak of equine piroplasmosis in southern Texas, USA, in 2009. Infection prevalence reached 100% in some areas (292 infected horses). Amblyomma cajennense was the predominant tick and experimentally transmitted Theileria equi to an uninfected horse. We suggest that transmission by this tick species played a role in this outbreak.
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http://dx.doi.org/10.3201/eid1710.101182 | DOI Listing |
Vet Sci
November 2024
Department of Parasitology and Parasitic Disease, Faculty of Veterinary Medicine, University of Life Sciences "King Mihai I" of Timisoara, 119, Calea Aradului, 300645 Timisoara, Romania.
is a tick-borne hemoparasite that causes equine piroplasmosis. It has a significant economic impact, decreasing performance and affecting animal welfare. This study aimed to identify DNA in the blood of horses from households in the southwestern and western regions of Romania.
View Article and Find Full Text PDFTicks Tick Borne Dis
December 2024
INRAE, Oniris, BIOEPAR, Nantes 44300, France.
Equine piroplasmosis is a tick-borne disease mainly caused by Theileria equi and Babesia caballi. The objectives of this study were to analyse the frequency and routes of vertical transmission of these blood parasites from 179 asymptomatic mares to their foals. Foals were sampled within 72 h post-partum.
View Article and Find Full Text PDFVet Parasitol
December 2024
CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Portugal; Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), Portugal; Elvas School of Biosciences, Polytechnic Institute of Portalegre, Portugal; VALORIZA - Research Centre for Endogenous Resources Valorisation, Polytechnic Institute of Portalegre, Portugal.
Equine piroplasmosis (EP) is a tick-borne disease of equids caused by Theileria equi, Theileria haneyi, and Babesia caballi. EP is endemic in most tropical and subtropical regions worldwide, and there is a likelihood that it is also endemic in Portugal. This retrospective study aimed to determine the seroprevalence, prevalence, and potential risk factors of EP in our country over the past five years.
View Article and Find Full Text PDFVet Res Commun
December 2024
Instituto de Investigación de la Cadena Láctea (IDICAL, INTA-CONICET), Estación Experimental Agropecuaria Rafaela, RN N° 34, KM 227, Rafaela, CP 2300, Santa Fe, Argentina.
After the previous description and characterization of Theileria equi sensu stricto (Genotype A) in Argentina, the aim of the present study was to investigate the possible heterogeneity of 18 S rDNA genotypes circulating in this country. Therefore, blood samples from 18 horses from two different neighborhoods of Corrientes City, Corrientes Province, were analyzed for infection with Theileria species. Theileria DNA was detected in five samples (27.
View Article and Find Full Text PDFTierarztl Prax Ausg G Grosstiere Nutztiere
December 2024
Laboklin GmbH and Co. KG, Bad Kissingen.
Equine piroplasmosis (EP) is caused by (.) and (.) and is transmitted by hard ticks.
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