Parasitological examination for Trypanosoma theileri infection of cattle from Quirino Province, Philippines

Abstract

Abstract:Trypanosoma theileri is one of the protozoan parasites reported in cattle and carabaos in the Philippines. The distribution of T. theileri infection in livestock in this country is not well established. To date, more than two decades have passed without any new T. theileri prevalence reported in the country. The present study endeavored to determine whether the parasite is endogenously present in cattle from the remote areas of Region II (Cagayan Valley), particularly in the province of Quirino, Philippines and to establish the current parasite prevalence of T. theileri in this province using the blood parasite examination method. A total of 246 field blood samples of cattle was collected from 5/6 (83%) of the municipalities of Quirino Province, Philippines. Blood parasite examination of Giemsa-stained smears revealed that all samples were negative for the presence of the T. theileri parasite. Given that the mainstay of parasitological examination in the field is the classic blood parasite examination method, the data suggest that the negative results of these examinations can probably be attributed to very low parasitemia.

Molecular prevalence and phylogenetic analysis of Theileria annulata and Trypanosoma evansi in cattle in Northern Tunisia

“…The distribution of arthropod‐borne diseases is associated with the presence and distribution of its vector host (Baticados et al . ). In this context, the low prevalence of surra can be due to the scarcity of vector arthropod, the low parasitaemia in cattle and the low susceptibility of this species to T. evansi .…”

Molecular Detection and Phylogenetic Analysis of Trypanosoma Evansi in Camels in North Eastern Nigeria

“…Thus PCR has been considered to be the most sensitive, speci c and most reliable technique that has a wider acceptability (Reid, 2002;Mugittu et al, 2001). In this current study, PCR was employed in order to achieve more effective and reliable result because PCR allows detection of speci c trypanosomal DNA through the use of species-speci c primers in accordance with earlier reported by Baticados et al, (2011).…”

“…Several methods have been developed for the detection of T. evansi infection, out of which PCR is considered to be the most sensitive and speci c and it has a wider range of application (Reid, 2002;Mugittu et al, 2001). PCR allows detection of speci c trypanosomal DNA through the use of species-speci c primers (Baticados et al, 2011, Boutellis et al, 2021. PCR is considered to be superior in parasite detection and antigen detection tests due to its sensitivity in detecting the prepatent and chronic phase of an infection (Tehseen et al, 2015).…”