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Usually, many bites are required before infection occurs. [7] These flies live near rivers, hence the common name of the disease, River blindness. [6] Once inside a person, the worms create larvae that make their way out to the skin, where they can infect the next black fly that bites the person. [1]
What they look like: Chiggers, a type of small mite, typically leave clusters of bites that are often very itchy. In many cases, chigger bites appear as small, red and itchy bumps. Sometimes, they ...
Mosquito Bites. What it looks like: Mosquito bites present as small, puffy, round bumps that are lighter or redder than the surrounding skin. Bites often center around ankles, hairlines, and the ...
For a more outside-the-box approach, this bug bite treatment delivers concentrated heat to the bite, according to King. “ Studies demonstrate a reduction in swelling, pain and itching [with this ...
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 ]
The mite parasitizes a variety of insect hosts and bites humans, causing red, itchy, and painful wheals (welts). The mites are barely visible, measuring about 0.2–0.8 millimeters; their great reproductive potential, small size, and high capacity for dispersal by wind make them difficult to control or avoid. [1]
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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.