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Crabs, pubic lice, phthiriasis, phthiriasis pubis: Pubic lice in genital area: Specialty: Infectious disease: Symptoms: Itch, scratch marks, grey-blue marks, visible lice and nits: Complications: Secondary bacterial infection: Causes: pubic louse: Risk factors: Sexual activity, crowded situations: Diagnostic method: Direct vision of lice with ...
Head lice are spread by direct contact with the hair of someone who is infected. [4] The cause of head lice infestations in children is not related to cleanliness. [5] Other animals, such as cats and dogs, do not play a role in transmission. [4] Head lice feed only on human blood and are only able to survive on human head hair.
Lice are vectors of diseases such as typhus. Chewing lice live among the hairs or feathers of their host and feed on skin and debris, whereas sucking lice pierce the host's skin and feed on blood and other secretions. They usually spend their whole life on a single host, cementing their eggs, called nits, to hairs or feathers.
Leptospirosis is an infectious disease caused by a spirochaete. Symptoms include liver and kidney failure and vasculitis. [10] Lyme disease* is a disease caused by Borrelia burgdorferi, a spirochaete, and spread by ticks of the genus Ixodes. Symptoms in dogs include acute arthritis, anorexia and lethargy. There is no rash as is typically seen ...
List of aquarium diseases; List of dog diseases; List of feline diseases; List of diseases of the honey bee; List of diseases spread by invertebrates; Poultry disease; Lists of zoonotic diseases, infectious diseases that have jumped from an animal to a human
Head lice (Pediculus humanus capitis) are not known to be vectors of diseases, unlike body lice (Pediculus humanus humanus), which are known vectors of epidemic or louse-borne typhus (Rickettsia prowazekii), trench fever (Rochalimaea quintana) and louse-borne relapsing fever (Borrelia recurrentis). [citation needed]
Head lice, like other insects of the order Phthiraptera, are hemimetabolous. [1] [10] Newly hatched nymphs will moult three times before reaching the sexually mature adult stage. [1] Thus, mobile head lice populations may contain eggs, nits, three nymphal instars, and the adults (male and female) . [1]
Trichodectes canis is a louse of the suborder Mallophaga, or chewing lice. T. canis is a small, flat-bodied louse. Males are typically smaller than females, with body lengths ranging from 1.60 to 1.68 mm in males and 1.75 to 1.82 mm in females.