Reduviid Bug | definition of Reduviid Bug by Medical dictionary
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As commonly used, any bug that acts as a vector for Chagas disease, so named because they often bite on the face. It is a cone-nosed haematophagous insect with various hosts in the tropics and subtropics; it measures 1-4 cm and is ‘autumn-colored’; its bite elicits papules, painful urticaria, haemorrhagic bulla, occasionally angiooedema, anaphylactoid reaction, and shock; it is also the vector for trypanosoma—Chaga’s disease—causing inflammation, atrophy and fibrosis of Auerbach’s plexus ganglion cells, resulting in acquired megacolon
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The incidence of Chagas' disease can be reduced by controlling the reduviid bug population by use of insecticides especially in homes where they can burrow into crevices.
Table 6-2 Cellular and Infective Stages of the Hemoflagellates Genus/Species Amastigote Promastigote [ILLUSTRATION OMITTED] [ILLUSTRATION OMITTED] Trypanosoma cruzi Intracellular Occurs Trypanosoma brucei Does not occur Does not occur Leishmania Intracellular In sand fly gut Genus/Species Epimastigote Trypomastigote [ILLUSTRATION OMITTED] [ILLUSTRATION OMITTED] Trypanosoma cruzi In gut of reduviid bug In feces of reduviid bug; transferred to humans Trypanosoma brucei In salivary gland of In mouthparts of tsetse fly tsetse fly Leishmania Does not occur Does not occur Table 6-3 Trypansomes That Affect Animals Trypanosome Species Animals Affected Geographic Distribution Try.
Travelers planning to stay in hotels, resorts, or other well-constructed housing facilities are NOT at high risk for contracting Chagas' disease from reduviid bugs