microfilaria


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Related to microfilaria: Wuchereria bancrofti

microfilaria

 [mi″kro-fĭ-lar″e-ah]
the prelarval stage of Filarioidea in the blood of humans and in the tissues of the vector. This term is sometimes incorrectly used as a genus name, and is then spelled with a capital M.
Generalized life cycle of microfilariae. From Mahon and Manuselis, 2000.

mi·cro·fi·lar·i·a

, pl.

mi·cro·fi·lar·i·ae

(mī'krō-fi-lar'ē-ă, -ē),
Term for embryos of filarial nematodes in the family Onchocercidae. In the past this term has been used as a generic designation (for example, Microfilaria bancrofti, M. malaya). See: Filaria.

microfilaria

/mi·cro·fi·la·ria/ (-fĭ-lar´e-ah) [L.] the prelarval stage of Filarioidea in the blood of humans and in the tissues of the vector; sometimes incorrectly used as a genus name.

microfilaria

(mī′krə-fə-lâr′ē-ə)
n. pl. microfilar·iae (-ē-ē′)
The minute larval form of a filarial worm.

mi′cro·fi·lar′i·al adj.

microfilaria

[mī′krōfiler′ē·ə] pl. microfilariae
Etymology: Gk, mikros + L, filum, thread
the prelarval form of any filarial worm. Certain blood-sucking insects ingest these forms from an infected host, and the microfilariae then develop in the body of the insect and become infective larvae. See also filariasis, loiasis, onchocerciasis, Wuchereria.
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Microfilaria

microfilaria

The prelarval progeny of parasitic nematodes of the superfamily Filarioidea, family Onchocercidae, which measure 200–300 µm in length, 5–7 µm in diameter, and inhabit lymphatic channels.
 
Diagnosis
Microfilaria are distinguished by the pattern of nematode sheath and arrangement of nuclei.

Microfilaria vectors
• Brugia malayi—Mosquito.
• Dracunculiasis medinensis—Copepod (nematode).
• Loa loa—Tabanid fly.
• Mansonella perstans—Midges.
• Onchocerca volvulus—Black fly.
• Wuchereria bancrofti—Mosquito.

mi·cro·fi·lar·i·a

, pl. microfilariae (mī'krō-fi-lar'ē-ă, -ē)
Term for embryos of filarial nematodes in the family Onchocercidae.
See: Filaria

microfilaria

The microscopic embryonic forms of various nematode worms that parasitize humans and animals. Microfilaria circulate in their millions in the blood and in the lymph vessels of people suffering from FILARIASIS. When taken up by a blood-sucking insect, microfilaria mature into the larval form of the worm within the body of the insect.

microfilaria

the larva of worms in the superfamily Filarioidea. They are produced by adult worms residing in the bloodstream, tissues or body cavities, from where they can be ingested by biting insects. There they pass through a developmental stage and are transmitted to another permanent host when it is bitten by the insect. The microfilariae of some species are nocturnal and are therefore available for transmission only at night.
References in periodicals archive ?
Microscopic examination of aspirate from the cystic lesion from the region of rete testis in our case, where filarial dance sign was appreciated on high resolution USG, revealed presence of microfilaria and not adult worm.
Leucocytozoon, along with Haemoproteus, microfilaria, and Trypanosoma, were detected at levels similar to those observed in previous studies of migrating Northern Saw-whet Owls (Taft et al.
schneideri: 1) several microfilariae associated with an adult female worm were in a cross-section of formalin-fixed carotid artery, 2) several microfilariae were in a section of formalin-fixed skin overlying the mandibular artery at the jugular notch of the mandible, and 3) one dead microfilaria was in an overnight saline soak of fresh forehead skin.
At lower level of community microfilaria load (CMFL) and higher level of vector density, vector control would be more cost effective (10), in spite of some natural bearings operating in limiting transmission (11).
12) unsheathed and excoriations microfilaria Eye involvement DEC with gradual (Mazotti test impairment of vision and blindness (river blindness) Loiasis (Fig.
And now a top vet has claimed our increasing warmer climate could see a rapid rise in the number of pets catching the deadly microfilaria bugs.
When the fly bites, it deposits the larvae of a parasitic worm which matures to adulthood and produces millions of tiny worms, called microfilaria.
Nineteen states/union territories in India are known to be endemic for lymphatic filariasis and 454 million people are at risk of infection with 29 million filarial cases and 22 million microfilaria carriers accounting for 40 per cent of the global burden (5).
Midnight blood samples were negative for microfilaria.
In the lung, worms are typically immature, and microfilaria production has not been reported in humans.
In addition, microfilaria parasites have been reported to be killed by the mechanical action of the cibarial and pharyngeal armature and other spines, teeth and papillae in the foregut of Culex, Anopheles and Aedes mosquitoes (McGreevy 1978; Lehane 1998).