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  2. Bed bug - Wikipedia

    en.wikipedia.org/wiki/Bed_bug

    Bed bugs are parasitic insects from the genus Cimex, who are micropredators that feed on blood, usually at night. [7] Their bites can result in a number of health impacts, including skin rashes, psychological effects, and allergic symptoms. [5] Bed bug bites may lead to skin changes ranging from small areas of redness to prominent blisters.

  3. Pneumonoultramicroscopicsilicovolcanoconiosis - Wikipedia

    en.wikipedia.org/wiki/Pneumonoultramicroscopicsi...

    Pneumono­ultra­micro­scopic­silico­volcano­coniosis is the longest word in the English language. The word can be analysed as follows: Pneumono: from ancient Greek (πνεύμων, pneúmōn) which means lungs; ultra: from Latin, meaning beyond; micro and scopic: from ancient Greek, meaning small looking, referring to the fineness of ...

  4. Trombiculidae - Wikipedia

    en.wikipedia.org/wiki/Trombiculidae

    In their larval stage, they attach to various animals, including humans, and feed on skin, often causing itching. These relatives of ticks are nearly microscopic, measuring 400 μm (1/60 of an inch) and have a chrome-orange hue. [9] [10] There is a marked constriction in the front part of the body in the nymph and adult stages.

  5. Goose bumps - Wikipedia

    en.wikipedia.org/wiki/Goose_bumps

    Goose bumps are created when tiny muscles at the base of each hair, known as arrector pili muscles, contract and pull the hair straight up. The reflex is started by the sympathetic nervous system, which is responsible for many fight-or-flight responses. The muscle cells connected to the hair follicle have been visualized by actin ...

  6. Leishmaniasis - Wikipedia

    en.wikipedia.org/wiki/Leishmaniasis

    Leishmaniasis is a wide array of clinical manifestations caused by protozoal parasites of the Trypanosomatida genus Leishmania. [7] It is generally spread through the bite of phlebotomine sandflies, Phlebotomus and Lutzomyia, and occurs most frequently in the tropics and sub-tropics of Africa, Asia, the Americas, and southern Europe.

  7. Mite - Wikipedia

    en.wikipedia.org/wiki/Mite

    The microscopic mite Lorryia formosa (). The mites are not a defined taxon, but is used for two distinct groups of arachnids, the Acariformes and the Parasitiformes.The phylogeny of the Acari has been relatively little studied, but molecular information from ribosomal DNA is being extensively used to understand relationships between groups.

  8. Pathogen - Wikipedia

    en.wikipedia.org/wiki/Pathogen

    The scientific study of microscopic organisms, including microscopic pathogenic organisms, is called microbiology, while parasitology refers to the scientific study of parasites and the organisms that host them. There are several pathways through which pathogens can invade a host.

  9. Wart - Wikipedia

    en.wikipedia.org/wiki/Wart

    A range of types of wart have been identified, varying in shape and site affected, as well as the type of human papillomavirus involved. [6] [7] These include: Common wart (verruca vulgaris), [8] a raised wart with a roughened surface, most common on hands, but can grow anywhere on the body. Sometimes known as a Palmer wart or Junior wart.