It is known to lead to uveitis, glaucoma, and retinal detachment. Myiasis of the human eye or ophthalmomyiasis can be caused by Hypoderma tarandi, a parasitic botfly of caribou. Predisposing factors include poor socioeconomic conditions, extremes of age, neglect, mental disability, psychiatric illness, alcoholism, diabetes, and vascular occlusive disease. It has been a serious complication of war wounds in tropical areas, and is sometimes seen in neglected wounds in most parts of the world.
Wound myiasis occurs when fly larvae infest open wounds.
If located in the middle ear, larvae may get to the brain. Death is not uncommon.Ĭrawling sensations and buzzing noises. In some cases facial edema and fever can develop. Obstruction of nasal passages and severe irritation. Painful, slow-developing ulcers or furuncle- (boil-) like sores that can last for a prolonged period Several different presentations of myiasis and their symptoms: Syndrome In extremely rare cases, maggots may occasionally infest the vulvar area. Larvae or eggs can reach the stomach or intestines if they are swallowed with food and cause gastric or intestinal myiasis. Some enter the body through the nose or ears. They may invade open wounds and lesions or unbroken skin. Larvae may infect dead, necrotic (prematurely dying) or living tissue in various sites: the skin, eyes, ears, stomach and intestinal tract, or in genitourinary sites. How myiasis affects the human body depends on where the larvae are located. The name of the condition derives from ancient Greek μυῖα ( myia), meaning "fly". tenax can cause in humans via water containing the larvae or in contaminated uncooked food. There can also be accidental myiasis that E.
#Fly strike in humans skin#
Some flies lay eggs in open wounds, other larvae may invade unbroken skin or enter the body through the nose or ears, and still others may be swallowed if the eggs are deposited on the lips or on food. Such variations depend largely on the fly species and where the larvae are located. Myiasis varies widely in the forms it takes and its effects on those affected. Although typically a far greater issue for animals, myiasis is also a relatively frequent disease for humans in rural tropical regions where myiatic flies thrive, and often may require medical attention to surgically remove the parasites. Although flies are most commonly attracted to open wounds and urine- or feces-soaked fur, some species (including the most common myiatic flies-the botfly, blowfly, and screwfly) can create an infestation even on unbroken skin and have been known to use moist soil and non-myiatic flies (such as the common housefly) as vector agents for their parasitic larvae.īecause some animals (particularly non-native domestic animals) cannot react as effectively as humans to the causes and effects of myiasis, such infestations present a severe and continuing problem for livestock industries worldwide, causing severe economic losses where they are not mitigated by human action. s ə s/ my- EYE-ə-səss ), also known as flystrike or fly strike, is the parasitic infestation of the body of a live animal by fly larvae ( maggots) that grow inside the host while feeding on its tissue.
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