Mansonella ozzardi

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

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.

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

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.

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


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.
References in periodicals archive ?
A Mansonelose causada pela Mansonella ozzardi Manson, 1897 (CERQUEIRA, 1959; SHELLEY et al.
Sobre a transmissao da Mansonella ozzardi 1a e 2a notas (Trabalho do Inpa).
Mansonella ozzardi no Territorio Federal de Roraima.
lahillei is considered the primary vector of filariasis caused by Mansonella ozzardi (Shelley & Coscaron 2001).
Acerca de la Transmision de Mansonella ozzardi (Manson).
Simuliid blackflies (Diptera: Simuliidae) and ceratopogonid midges (Diptera: Ceratopogonidae) as vectors of Mansonella ozzardi (Nematoda: Onchocercidae) in northern Argentina.
Characterisation of nuclear ribosomal DNA sequences from Onchocerca volvulus and Mansonella ozzardi (Nematoda: Filarioidea) and development of a PCR-based method for their detection in skin biopsies.
El rol de vector de los ceratopogonidos en las America es bien conocido hasta el presente solo para el caso de Mansonella ozzardi (Manson), una filaria parasita del hombre (7).
Of these, 25 patients were infected with Mansonella ozzardi, two with Wuchereria bancrofti, and two with both species.
Further, given that pathogen transmission is influenced by the abundance of vectors, the population peaks observed during the summer and fall indicate that these periods could be the most important ones with respect to the risk of transmission of Mansonella ozzardi by Culicoides.
Transmision of the human filarial parasite Mansonella ozzardi by Culicoides phlebotomus (Williston) (Diptera: Ceratopogonidae) in coastal north Trinidad.