ANFS251 Lecture Notes - Lecture 7: Antibody, Elisa, Jugular Vein
12 Sep 2017
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Heartworm: heartworm is caused by a roundworm, dirofilaria immitis, example of a filaria or small thread like worm. Leading host is the dog but it can also infect cats, wolves, coyotes, raccoons and foxes. Life cycle- 1: dirofilaria immitis is dependent on both the canine and the mosquito to fulfill its lifecycle, the adult worms mainly live in the chambers of the right side of the heart and pulmonary. In an infected dog the adult worms live in the dogs heart and lungs artery. Individual eggs developing in the uterus (of the worm) are enclosed in a thin membrane. As the embryo elongates, the surrounding membrane stretches to form an enclosing sheath. At birth, the membrane is lost and the embryo appears in the blood as a sheathless microfilaria. Life cycle- ii: the young worms called microfilaria circulate in the blood stream of the dog.
