ABSTRACT: The prevalence of trypanosomiasis in sheep is worldwide concern. It a hemoparasitic disease caused by the protozoan Trypanosoma (T) spp., andthe biological cycle transmission involves susceptible hosts and certain hematophagous flies, such as Tabanids Stomoxys. objective this study was to determine presence Trypanosomasp. (Ovisaries). Through an applied, descriptive-prospective-cross-...

Biting flies can strongly influence the behaviour of their hosts, for example, there is evidence that some species may avoid harassment by reducing locomotory activity. We tested hypothesis potential hosts reduce attraction to deer remaining stationary—that movement reduces exposure new compared still. During early summer in central Ontario, Canada, we conducted 20-min trials where a human host...

Experiments were conducted to adapt the cloth Nzi trap to a format suitable for fixed applications in biting fly sampling or control. Catches of tabanids [Tabanus L., Chrysops (Meigen), and Hybomitra Enderlein], and stable flies [Stomoxys calcitrans (L.)] in painted plywood traps were compared with those in standard phthalogen blue cloth traps, and in similarly painted cloth traps. The Manitoba...

Trypanosoma evansi, the agent of "surra," is a salivarian trypanosome, originating from Africa. It is thought to derive from Trypanosoma brucei by deletion of the maxicircle kinetoplastic DNA (genetic material required for cyclical development in tsetse flies). It is mostly mechanically transmitted by tabanids and stomoxes, initially to camels, in sub-Saharan area. The disease spread from North...

SSU ribosomal sequences of trypanosomes from Brazilian cattle and water buffalo were used to infer phylogenetic relationships between non-pathogenic T. theileri and allied species parasitic in artiodactyls. T. theileri trypanosomes from distinct geographical regions in Brazil and from other countries were tightly clustered into the 'clade T. theileri' distant from the 'T. brucei clade' of patho...