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Insect Borne Diseases

Insect Borne Diseases - Insect Borne Diseases Human...

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Insect Borne Diseases Human Diseases – diseases transmitted between individual humans and do not have other significant hosts Zoonosis(es)- Diseases that are naturally transmitted between humans and other vertebrate animals o 1/2 of infectious organisms that affect humans are of zoonotic origins o 2 types of zonnoses as classified by the W.H.O. Direct zoonosis – Accidental transfer – directly transferred from the agent to the source on external features Metazoonoses – Biologically transferred as part of life cycle. most commonly transmitted through saliva or feces Transmission Cycle o Disease agent – typically viruses, bacteria, protozoa o The vector – most commonly fleas, hempiterans, flies, and non-insects like ticks and mites o Primary reservoir or host – A vertebrate that is readily infected and can host the agent long enough to serve as a source of two vectors humans often have strong immune systems so they’re not the targets o
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