Identification of Theileria spp. in sheep and goats from Jeddah, Saudi Arabia, using molecular techniques

PeerJ. 2021 Dec 10:9:e12596. doi: 10.7717/peerj.12596. eCollection 2021.

Abstract

Background: Thileriosis is a tick -born disease caused by hemoprotozoan parasites which has global veterinary and economic implications.

Methods: Blood samples were collected from 216 sheep and 83 goats from Jeddah, Saudi Arabia, were analyzed to determine whether the animals were infected with Theileria spp. parasites. The parasites were detected using a polymerase chain reaction (PCR) targeting the gene of 18S rRNA followed by sequencing.

Results: According to obtained findings, Theileria spp. were detected in sheep (57.8%, 48/83) and goats (51.9%, 112/216). Phylogenetic analysis to sequence data showed that T. ovis identified in this study were found to be closely connected to an isolate from Turkey, with 84.4-99.8% pairwise identity and 52.35-99.79% coverage.

Keywords: 18S rRNA; Polymerase chain reaction (PCR); Theileria spp..

Grants and funding

This work was supported by the Researchers Supporting Project number (RSP-2021/99), King Saud University, Riyadh, Saudi Arabia. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.