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 ?
9) But more intensive regimens with these drugs have shown their efficiency in reducing and even clearing microfilaria from the blood.
Entre estos se cuentan las microfilarias, halladas en este estudio y observadas en distintos lugares del mundo (Walton 1964a, 1964b, Levine & Nye 1977, Barta & Desser 1984, Desser 2001, Chutmongkonkul et al.
In the light of the present findings showing high vector prevalence and the detection of 20 new microfilaria carriers during a very limited sentinel parasitic survey (Source: NVBDCP, Goa), coupled with the increased mf rate i.
Thus, the potential danger of importing bancroftosis and the establishment of sustainable foci of disease depend on the number of infected individuals and on the microfilaria density of patients, conditions that apparently did not exist at the places assessed in the present study.
A review of the literature revealed that no further treatment was necessary as the adult worm had been removed and microfilaria were unlikely following this infection.
Speaking at his Cedarmount Clinic, Dr Reilly said: "We specialise in treating all the complications which can afflict the family pet - but this is our first case of microfilaria.
Os adultos podem viver por varios anos no cao, e a microfilaria pode sobreviver, no maximo, por dois anos e meio (ACHA & SZYFRES, 2003; CIRIO, 2005).
Heartworm test: Detects adult heartworm antigens or antibodies to adult or microfilaria antigens.
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).
Biting midges pick up the microfilaria in the skin of horses; these develop to an infective stage in the midge in about 3 weeks.
All blood smears were examined for five minutes (x 250, x 400 objectives) for the presence or absence of endoparasites of the genera Leucocytozoon, Trypanosoma, Microfilaria, Haemoproteus, and Plasmodium.