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The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans. [1] Head lice are wingless insects that spend their entire lives on the human scalp and feed exclusively on human blood. [1] Humans are the only known hosts of this specific parasite, while chimpanzees and bonobos host a closely related species, Pediculus schaeffi.
Pediculus humanus is a species of louse that infects humans. It comprises two subspecies: [1] [2] Pediculus humanus humanus Linnaeus, 1758 – body louse; Pediculus humanus capitis De Geer, 1767 – head louse
Female lice are usually more common than males, and some species are parthenogenetic, with young developing from unfertilized eggs. A louse's egg is commonly called a nit. Many lice attach their eggs to their hosts' hair with specialized saliva; the saliva/hair bond is very
Female H. suis lay 3–6 eggs per day following a blood meal and mating, eventually laying about 90 eggs. The amber eggs are deposited on the lower half of the swine's side, or the neck, shoulders, flanks, or on the back of the ears. Lice eggs are commonly referred to as "nits". [Note 1] These nits have small holes for gas exchange, called ...
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Head lice infestation, also known as pediculosis capitis, is the infection of the head hair and scalp by the head louse (Pediculus humanus capitis). [6] Itching from lice bites is common. [ 5 ] During a person's first infection, the itch may not develop for up to six weeks. [ 5 ]
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.
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