Transplacental transmission of Theileria equi in mules: Should we worry?

Françoso, R.; Riccio, Amanda Vallone; Fernandes, Claudia Barbosa; Alonso, Maria Augusta; Belli, Carla Bargi

doi:10.1016/j.vetpar.2018.10.017

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…Trans-placental transmission from pregnant mares to fetus has been reported [28,29,30], in most cases leading to abortion [30]. Recently, evidence of trans-placental transmission was reported in mules and was particularly associated more with T. equi raising concern about the importance of this pathogen in breeding of mules [31]. Transmission by this means is of little epidemiological significance.…”

Section: Transmission Of Equine Piroplasmsmentioning

confidence: 99%

A Review on Equine Piroplasmosis: Epidemiology, Vector Ecology, Risk Factors, Host Immunity, Diagnosis and Control

Onyiche

Suganuma

Igarashi

et al. 2019

IJERPH

110

109

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Equine Piroplasmosis (EP) is a tick-borne disease caused by apicomplexan protozoan parasites, Babesia caballi and Theileria equi. The disease is responsible for serious economic losses to the equine industry. It principally affects donkeys, horses, mules, and zebra but DNA of the parasites has also been detected in dogs and camels raising doubt about their host specificity. The disease is endemic in tropical and temperate regions of the world where the competent tick vectors are prevalent. Infected equids remain carrier for life with T. equi infection, whilst, infection with B. caballi is cleared within a few years. This review focuses on all aspects of the disease from the historical overview, biology of the parasite, epidemiology of the disease (specifically highlighting other non-equine hosts, such as dogs and camels), vector, clinical manifestations, risk factors, immunology, genetic diversity, diagnosis, treatment, and prevention.

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Section: Transmission Of Equine Piroplasmsmentioning

confidence: 99%

A Review on Equine Piroplasmosis: Epidemiology, Vector Ecology, Risk Factors, Host Immunity, Diagnosis and Control

Onyiche

Suganuma

Igarashi

et al. 2019

IJERPH

110

109

View full text Add to dashboard Cite

show abstract

“…Babesia caballi and T. equi are transmitted by ticks (biological vectors), and frequently co-infect horses [4][5][6][7]. Although transmission via the placenta from pregnant mares to fetuses has been described, this route is of little epidemiological significance for EP, and is considered rare, especially for B. caballi [8][9][10][11]. Additionally, B. caballi and T. equi can be transmitted mechanically or iatrogenically via contaminated needles and syringes, blood transfusions, and surgical instruments [9].…”

Section: Introductionmentioning

confidence: 99%

Occurrence and Genetic Diversity of Babesia caballi and Theileria equi in Chilean Thoroughbred Racing Horses

et al. 2021

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This study aimed to serologically and molecularly survey Babesia caballi and Theileria equi in thoroughbred horses from racecourses in Chile. Additionally, the genetic diversity of the positive samples was assessed. A total of 286 thoroughbred horses from the Santiago and Valparaíso racecourses had their serum samples submitted to an ELISA for B. caballi and T. equi, and 457 samples (from the Santiago, Valparaíso, and Concepción racecourses) were tested with nested PCRs for the B. caballi 48 KDa rhoptry protein (RAP-1) and T. equi 18S rRNA genes. Selected RAP-1 and 18S positive products were sequenced to perform phylogenetic and haplotype analyses. An overall seroprevalence of 35.6% was observed for these Chilean racecourses: 23.7% for T. equi, 8.4% for B. caballi, and 3.5% for both agents. Overall, a 53.6% occurrence by nPCR was detected for the three Chilean racecourses: 44.2% for T. equi, 5.4% for B. caballi, and 3.9% for both agents. Phylogenetic analysis of T. equi and B. caballi showed genetic proximity with sequences previously detected in other countries. Haplotype analysis revealed a low diversity among the Chilean sequences, which may have originated from those reported in Brazil, Israel, or Cuba. Babesia caballi and T. equi were detected for the first time in Chilean thoroughbred horses.

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Evaluation of Theileria equi vertical transmission rate and routes in a cohort of asymptomatic mares and their foals

Hermans,

Bonsergent,

Josson

et al. 2025

Ticks and Tick-borne Diseases

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Transplacental transmission of Theileria equi in mules: Should we worry?

Cited by 5 publications

References 14 publications

A Review on Equine Piroplasmosis: Epidemiology, Vector Ecology, Risk Factors, Host Immunity, Diagnosis and Control

A Review on Equine Piroplasmosis: Epidemiology, Vector Ecology, Risk Factors, Host Immunity, Diagnosis and Control

Occurrence and Genetic Diversity of Babesia caballi and Theileria equi in Chilean Thoroughbred Racing Horses

Evaluation of Theileria equi vertical transmission rate and routes in a cohort of asymptomatic mares and their foals

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