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Head lice are most common among young children — 6 million to 12 million lice outbreaks occur yearly in children between 3 and 11 in the US — though adults are vulnerable to head lice as well.
But while many schools and day care facilities have a policy that someone with lice must have no lice eggs (called nits) in their hair before returning, the American Academy of Pediatrics says ...
Lice infestation in general is known as pediculosis, and occurs in many mammalian and bird species. [55] Lice infesting other host species are not the same organism as that which causes head lice infestations in humans, nor do the three louse species which infest humans infest any other host species. [citation needed]
According to the CDC, many nits are more than 1/4 of an inch from the scalp, meaning they are either very unlikely to hatch live, crawling lice, or wind up being an egg casing with no insect inside.
Lice have no wings or powerful legs for jumping, so they use the claws on their legs to move from hair to hair. [27] Normally, head lice infest a new host only by close contact between individuals, making social contacts among children and parent-child interactions more likely routes of infestation than shared combs, hats, brushes, towels ...
Accordingly, the infestation with head lice is named pediculosis capitis, while this with body lice, pediculosis corporis. [1] [2] Although pediculosis in humans may properly refer to lice infestation of any part of the body, the term is sometimes used loosely to refer to pediculosis capitis, the infestation of the human head with the specific ...
Head lice feed on blood several times each day and tend to reside close to your scalp, which explains the itchiness and why it’s sometimes so difficult to tell that you have head lice. Unlike ...
Body lice are spread through prolonged direct physical contact with a person who has them or with that person's clothing, bed linens or towels. In the United States, body lice infestations are rare, typically found mainly in homeless people who do not have access to bathing and regular changes of clean clothes.
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