A case of transplacental transmission of Theileria equi in a foal in Trinidad

Karla Georges, Chuckwudozi Ezeokoli, Olivier Sparagano, Indira Pargass, Mervyn Campbell, Roger D’Abadie, Michael Yabsley

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Equine piroplasmosis due to Theileria equi and Babesia caballi is endemic in Trinidad. A case of equine piroplasmosis due to T. equi was diagnosed in a thoroughbred foal at 10 h post-partum. A high parasitaemia (63%) of piroplasms was observed in a Wright-Giemsa® stained thin blood smear from the foal. In addition, the 18S rRNA gene for Babesia/Theileria was amplified from DNA extracted from the blood of the foal and the mare. Amplified products were subjected to a reverse line blot hybridization assay (RLB), which confirmed the presence of T. equi DNA in the foal. The mare was negative by RLB but was positive for T. equi using a nested PCR and sequence analysis. In areas where equine piroplasmosis is endemic, severe jaundice in a post-partum foal may be easily misdiagnosed as neonatal isoerythrolysis. Foals with post-partum jaundice should be screened for equine piroplasmosis, which may be confirmed using molecular methods if available.
Original languageEnglish
Pages (from-to)363-366
JournalVeterinary Parasitology
Issue number3-4
Publication statusPublished - 10 Feb 2011


Dive into the research topics of 'A case of transplacental transmission of Theileria equi in a foal in Trinidad'. Together they form a unique fingerprint.

Cite this