Trypanosoma is a genus of single-celled parasites belonging to the family Trypanosomatidae. These organisms are known for causing diseases in humans and animals, most notably African sleeping sickness and Chagas disease. They are transmitted through the bites of infected insects, such as the tsetse fly and the kissing bug. The life cycle of Trypanosoma involves multiple stages, including forms that live in the host's bloodstream and others that develop in the insect vector. These parasites can evade the host's immune system, making them difficult to treat. Understanding their biology is crucial for developing effective treatments and control measures.