Body lice are spread through prolonged direct physical contact with a person who has them or through contact with articles such as clothing, beds, bed linens, or towels that have been in contact with an infested person. In the United States, body lice infestations are rare, typically found mainly in homeless transient populations who do not have access to bathing and regular changes of clean clothes. Infestation is unlikely to persist on anyone who bathes regularly and who has at least weekly access to freshly laundered clothing and bedding. Although louse-borne (epidemic) typhus is no longer widespread, outbreaks of this disease still occur during times of war, civil unrest, natural or man-made disasters, and in prisons where people live together in unsanitary conditions. Louse-borne typhus still exists in places where climate, chronic poverty, and social customs or war and social upheaval prevent regular changes and laundering of clothing.
Pediculosis corporis
Hypertrichosis cubiti
Platonychia
Pachyonychia congenita
Pustulosis palmaris et plantaris
Trichostasis spinulosa
Chromonychia
Morsicatio buccarum