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For example, the human body louse transmits the bacterium Rickettsia prowazekii which causes epidemic typhus. Although invertebrate-transmitted diseases pose a particular threat on the continents of Africa, Asia and South America, there is one way of controlling invertebrate-borne diseases, which is by controlling the invertebrate vector.
Main article: Human parasite Endoparasites Protozoan organisms Common name of organism or disease Latin name (sorted) Body parts affected Diagnostic specimen Prevalence Source/Transmission (Reservoir/Vector) Granulomatous amoebic encephalitis and Acanthamoeba keratitis (eye infection) Acanthamoeba spp. eye, brain, skin culture worldwide contact lenses cleaned with contaminated tap water ...
Human metapneumovirus infection No Ehrlichia chaffeensis: Human monocytic ehrlichiosis: PCR: Doxycycline: No One of the human papillomaviruses: Human papillomavirus (HPV) infection Yes: Human parainfluenza viruses (HPIV) Human parainfluenza virus infection Under research [19] [20] Human T-lymphotropic virus 1 (HTLV-1) Human T-lymphotropic virus ...
Human parasites are divided into endoparasites, which cause infection inside the body, and ectoparasites, which cause infection superficially within the skin. The cysts and eggs of endoparasites may be found in feces , which aids in the detection of the parasite in the human host while also providing the means for the parasitic species to exit ...
Routes of exposure and infection include ingestion of undercooked meat, drinking infected water, fecal–oral transmission and skin absorption. Some types of helminths and protozoa are classified as intestinal parasites that cause infection—those that reside in the intestines. These infections can damage or sicken the host (humans or other ...
In a heavy infection, female pinworms may adhere to stools that pass out through the anus, and they may thus be detected on the surface on the stool. [14] [19] Adult pinworms are occasionally seen during colonoscopy. [14] On a microscopic level, pinworms have an identifying feature of alae (i.e., protruding ridges) running the length of the ...
But there are a few species that, when they bite, can cause serious symptoms. Brown recluse spider bites. What they look like: At first, a brown recluse spider bite may look like a bug bite or bee ...
Chagas disease is caused by infection with the protozoan parasite T. cruzi, which is typically introduced into humans through the bite of triatomine bugs, also called "kissing bugs". [4] When the insect defecates at the bite site, motile T. cruzi forms called trypomastigotes enter the bloodstream and invade various host cells. [ 5 ]