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The body louse (Pediculus humanus humanus, also known as Pediculus humanus corporis) or the cootie is a hematophagic ectoparasite louse that infests humans. [1] It is one of three lice which infest humans, the other two being the head louse , and the crab louse or pubic louse .
Pediculosis corporis is caused by the body louse, Pediculus humanus humanus (syn. Pediculus corporis [citation needed]). The dark mass depicted inside the abdomen is a previously ingested blood meal. Specialty: Dermatology: Symptoms: Itching: Complications: epidemic typhus, relapsing fever, trench fever, Vagabond's leukomelanoderma: Causes ...
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
Scientists have long debated whether human body lice might have helped drive the rapid spread of the bacteria responsible for the deadly plague in the Middle Ages, known as the Black Death. It’s ...
Pediculus is a genus of sucking lice, the sole genus in the family Pediculidae. Pediculus species are ectoparasites of primates. Species include: [1] Pediculus clavicornis Nitzsch, 1864; Pediculus humanus Linnaeus, 1758. Pediculus humanus humanus Linnaeus, 1758 – the body louse; Pediculus humanus capitis De Geer, 1767 – the head louse ...
It was expected that dating the split of the ancestral human louse into two species, the head louse and the pubic louse, would date the loss of body hair in human ancestors. However, it turned out that the human pubic louse does not descend from the ancestral human louse, but from the gorilla louse, diverging 3.3 million years ago. This ...
In 1935 the Harvard medical researcher Hans Zinsser wrote the book Rats, Lice and History, alleging that both body and head lice transmit typhus between humans. [44] Despite this, the modern view is that only the body louse can transmit the disease. [45] Detail showing delousing from Jan Siberechts' painting Cour de ferme ("Farmyard"), 1662
This date, at which the body louse diverged from both its parent species and its sibling subspecies, the head louse (P. humanus capitus), can be determined by the number of mutations each has developed during the intervening time. Such mutations occur at a known rate and the date of last-common-ancestor for two species can therefore be ...