Mansonella ozzardi

(redirected from Mansonella tucumana)

Man·son·el·la oz·zar·'di

a filarial parasite occurring in the Yucatan, Panama, Colombia, northern Argentina, Guyana, French Guiana, and the islands of St. Vincent and Dominica, causing mansonelliasis; the microfilariae are not ensheathed, and there are no nuclei in the pointed tail; the life cycle is similar to that of Wuchereria bancrofti; humans are the only known definitive host, and the intermediate hosts are biting midges, Culicoides furens and possibly C. paraensis.

Mansonella ozzardi

[man′sənel′ə]
a parasitic worm that is indigenous to much of Latin America and the Caribbean islands. It is a relatively benign nematode that infects humans, sometimes causing hydrocele or lymphadenopathy. The larvae live in the bloodstream, and adult worms are found in the visceral mesenteries. The intermediate hosts are biting flies of the genus Culicoides.

Mansonella ozzardi

A filarial nematode which causes serosal filariasis in humans.

Epidemiology
Subsaharan Africa, Central and South America, Caribbean; up to 50% of Brazilian farmers are infected by M ozzardi.

Vector
Haematophagous midges (genus Culicoides) in the Caribbean and blackflies (genus Simulium) in the Amazon basin.

Clinical findings
Generally banal, with angioedema, Calabar-like swellings, pruritus, fever, headache,  eosinophilia and abdominal pain.

Management
Uncertain; anti-filarial drugs (e.g., ivermectin, diethylcarbamazine and albendazole) are ineffective against Mansonella species.

Mansonella

a genus of nematode parasites of the superfamily Filaroidea transmitted by Culicoides and Simulium spp.

Mansonella ozzardi
a species found in the mesentery and visceral fat of humans in Central and South America; suspected sightings also in domestic animals.