What is the classification of myiasis?
Myiasis is an ectoparasitic infestation of viable or necrotic tissues by the dipterous larvae of higher flies and may be broadly classified as obligatory or facultative myiasis. In obligatory myiasis, maggots must live and feed on human or animal hosts as part of their life cycle.
What is the common name of Dermatobia hominis?
human bot fly
The human bot fly, Dermatobia hominis (Linnaeus Jr., 1781), is a large, densely haired fly that looks like a bumblebee (Kahn 1999). The human bot fly is native to Central and South America.
Where would you be at risk of being parasitized by Dermatobia hominis?
Dermatobia hominis larvae parasitize diverse regions on the human body, from the ankle to the brain of infants (through fontanelles, or gaps between incompletely formed bones of an infant’s cranium) often causing tissue damage and bouts of severe pain from the boring activity of the larvae.
What is myiasis and its types?
Cutaneous myiasis can be divided into three main clinical manifestations: furuncular, creeping (migratory), and wound (traumatic) myiasis. The flies that produce a furuncular myiasis include Dermatobia hominis, Cordylobia anthropophaga, Wohlfahrtia vigil, and the Cuterebra species.
What are the two types of myiasis?
In cutaneous myiasis, the two main clinical types are wound myiasis and furuncular (follicular) myiasis. Other forms include creeping/migratory myiasis and cavitary myiasis of body organs. In nasopharyngeal myiasis, the nose, sinuses, and pharynx are involved.
What does myiasis mean?
Myiasis is the infection of a fly larva (maggot) in human tissue. This occurs in tropical and subtropical areas. Myiasis is rarely acquired in the United States; people typically get the infection when they travel to tropical areas in Africa and South America.
How does a person get a bot fly?
To reproduce, female botflies lay eggs on blood-sucking arthropods such as mosquitoes or ticks. The infested arthropods deposit larvae from the eggs when they bite a human or other mammal. A botfly larva enters the host’s skin through the bite wound or a hair follicle and burrows to subcutaneous tissue.
What type of symbiotic relationship does the torsalo have with the smaller flies?
The relationship between the torsalo and the fly that delivers its eggs is commensal (the torsalo benefits; the fly is unaffected). This type of symbiosis, in which one species uses another only as means of transportation, is also known as phoresy.
Where are Dermatobia hominis found?
Central and South America
Background. Dermatobia hominis (Diptera: Oestridae: Cuterebrinae) is a parasite with an important zoonotic and economical impact in the cattle industry, distributed in Central and South America, inhabiting wooded areas along rivers and lowlands. It infests mammals including humans.
What is the causative agent of myiasis?
Causal Agent Myiasis is infection with the larval stage (maggots) of various flies. Flies in several genera may cause myiasis in humans. Dermatobia hominis is the primary human bot fly. Cochliomyia hominovorax is the primary screwworm fly in the New World and Chrysomya bezziana is the Old World screwworm.
What is Dermatobia hominis?
Dermatobia hominis (the human botfly) uses a bloodsucking insect as a vector to deposit its eggs on a warm-blooded host. The human bot fly, Dermatobia hominis, is a parasite of humans, cattle, swine, cats, dogs, horses, sheep, and other mammals and a few birds in Mexico and Central and South America.
Do other myiasis-causing flies follow Dermatobia hominis’dispersion strategy?
Dermatobia hominis has a particular behavior related to the search for their hosts: females lay eggs on other insects, where they remain firmly fixed such that the insect-carrier (called phoretic) will carry them (Fig. 1 F). To date, this dispersion strategy has not been observed among other myiasis-causing flies. Musca domestica L.
How do Dermatobia hominis lay eggs?
Dermatobia hominis has a particular behavior related to the search for their hosts: females lay eggs on other insects, where they remain firmly fixed such that the insect-carrier (called phoretic) will carry them ( Fig. 1 F). To date, this dispersion strategy has not been observed among other myiasis-causing flies.