trypanosoma Definition

the type genus of the family Trypanosomatidae comprising kinetoplastid flagellates that as adults are elongated and somewhat spindle-shaped, have a posteriorly arising flagellum which passes forward at the margin of an undulating membrane and emerges near the anterior end of the body as a short free flagellum, and are parasitic in the blood or rarely the tissues of vertebrates, that following development in the digestive tract of a blood-sucking invertebrate and usually an insect pass ultimately to the mouthparts or salivary structures where they may be transmitted into a new vertebrate host bitten by the invertebrate host, and that are responsible for various serious diseases (as Chagas disease, dourine, nagana, sleeping sickness, and surra) of humans and domestic animals

trypanosome