Insects as Pest Part C

Insects as Pest Part C - Insects as Pests of Humans (Part...

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Insects as Pests of Humans (Part C) Why we sometimes feel lousy V Chagas’ Disease Most assassin bugs are predators, but some, such as Triatoma infestans , are vertebrate blood feeders. They are vectors of a microscopic flagellated protozoan, Trypanosoma lewesi , which causes Chagas' Disease from Binford & Connor (1976) Trypanosome Important disease in South America 21 countries 16-18 million infected 100 million at risk Poor housing V More Images Related to This Topic V
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Chagas’ Disease Transmission cycle similar to typhus: When bug eats it defecates, you inoculate yourself by scratching infected feces into the wound Or, trypanosome gets on your fingers, then you touch your eye Also possible for bug feces to fall from ceiling into food Poor housing and close contact with farm animals increases disease transmission V More Images Related to This Topic V Chagas’ Disease Eye swells, and this is called the Sign of Romana Two forms of disease:
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Insects as Pest Part C - Insects as Pests of Humans (Part...

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