What is the medical significance of Pediculus humanus humanus?
What is the medical significance of Pediculus humanus humanus?
Pediculus humanus, the body louse is associated with the spread of many diseases, such as Ricketts, Typhus and Relapsing Fever. This insect also transmitted the disease known as Trench Fever, which reduced Napoleon’s Army and was prevalent in all war areas during World War I (see ent79):
What is Pediculus?
Pediculosis is an infestation of the hairy parts of the body or clothing with the eggs, larvae or adults of lice. The crawling stages of this insect feed on human blood, which can result in severe itching. Head lice are usually located on the scalp, crab lice in the pubic area and body lice along seams of clothing.
Which louse is also known as Pediculus humanus corporis?
The body louse (Pediculus humanus humanus, also known as Pediculus humanus corporis) is a hematophagic ectoparasite louse that infests humans. It is one of three lice which infest humans, the other two being the head louse, and the crab louse or pubic louse.
Where are Pediculus humanus found?
Human lice can be found anywhere on the planet that is populated by humans. They are more prevalent in areas where people change or wash their clothing infrequently and/or are unclean themselves (Milne and Milne 1980).
What disease does Pediculus humanus cause?
Pediculus humanus humanus is the vector of epidemic typhus, relapsing fever, and trench fever.
How is pediculosis treated?
First-line pharmacologic treatment of pediculosis is permethrin 1% lotion or shampoo. Multiple novel treatments have shown limited evidence of effectiveness superior to permethrin. Wet combing is an effective nonpharmacologic treatment option.
What disease is caused by Pediculus humanus?
Pediculosis capitis is a ubiquitous parasitic skin disease caused by Pediculus humanus capitis. Head lice are highly specialised parasites which can propagate only on human scalp and hair.
What are the 3 types of pediculosis?
The 3 major lice that infest humans are Pediculus humanus capitis (head louse), Pthirus pubis (crab louse), and Pediculus humanus humanus (body louse).
What is another name for body lice?
Infestation with body lice is also called pediculosis.
What is vagabond’s disease?
Medical Definition of vagabond’s disease : a condition of pigmentation of the skin caused by long continued exposure, uncleanliness, and especially by scratch marks and other lesions due to the presence of body lice.
What is the treatment of pediculosis?
What kind of disease does Pediculus humanus corporis cause?
Pediculus humanus corporis. The body louse that inhabits the seams of clothing worn next to the body and feeds on regions of the body covered by that clothing. Eggs are attached to fibers of the clothing. This organism causes human illnesses including pediculosis corporis and trench fever.
How big is a Pediculus humanus in feet?
Physical Description. Pediculus humanus is a small insect with a large abdomen and legs equipped with sharp claws for holding onto hair and clothing fibers. The head of the louse ia slightly narrower than the body.
How big is a Pediculus humanus capitis egg?
The head louse, Pediculus humanus capitis, is normally 1-2 mm long, while the body louse, Pediculus humanus humanus, also known as the “cootie” is usually slightly larger, 2-3.5 mm. The “nits,” or eggs, of the louse are about 1 mm long and about half as wide.
Which is the only host for pediculosis in humans?
Pediculosis is infestation with the human head-and-body louse, Pediculus humanus. There are two subspecies, the head louse (P. h. capitis) and the body louse (P. h. humanus). They are ectoparasites whose only known hosts are humans.