Biomaterial Database

Investigation of the occurrence of Mansonella ozzardi in the State of Rondônia, Western Amazonia, Brazil. 2011

Sergio de Almeida Basano, and Juliana de Souza Almeida Aranha Camargo, and Luana Janaína de Souza Vera, and Suzane Neves Velasques, and Guilherme Maerschner Ogawa, and Jansen Fernandes Medeiros, and Gilberto Fontes, and Luís Marcelo Aranha Camargo

Departamento de Medicina, Faculdade São Lucas, Porto Velho, Brazil.

BACKGROUND Mansonella ozzardi, a human filarial nematode transmitted by Diptera Simuliidae flies (black flies), is widely spread in the Amazon, while the occurrence of mansonelliasis in the State of Rondônia (Western Amazonia) has not been reported thus far. The existence of this parasitic disease in this state is investigated in this study. METHODS A total of 4,452 people who lived alongside the Madeira, Mamore, Guapore, Machado and Preto Rivers, in the State of Rondônia, were examined using the thick blood smear method. Alongside the Machado and Guapore rivers, 2,112 adult simuliid specimens were captured. RESULTS Infected people were not reported, although simuliids with vector potential such as Cerqueirellum pydanielli, C. argentiscutum and C. amazonicum were found. CONCLUSIONS This study registered no infected people. This finding may be explained by the individuals' low level of microfilaremia that is below the limit of detection of the diagnostic method used in the study or insufficient migration of people infected with M. ozzardi from endemic areas, making it impossible to introduce the disease into Rondônia. Further studies using more sensitive diagnostic techniques could shed light on this question.

UI	MeSH Term	Description	Entries
D007303	Insect Vectors	Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.	Insect Vector,Vector, Insect,Vectors, Insect
D008366	Mansonella	A genus of parasitic nematodes whose organisms are distributed in Central and South America. Characteristics include a smooth cuticle and an enlarged anterior end.	Acanthocheilonema perstans,Dipetalonema perstans,Filaria demarquayi,Filaria ozzardi,Mansonella ozzardi,Tetrapetalonema,Mansonella perstans,Mansonellas,Tetrapetalonemas
D008368	Mansonelliasis	Infection with nematodes of the genus MANSONELLA. Symptoms include pruritus, headache, and articular swelling.	Acanthocheilonema perstans Infection,Dipetalonema perstans Infection,Mansonella perstans Infections,Mansonellosis,Acanthocheilonema perstans Infections,Dipetalonema perstans Infections,Infection, Acanthocheilonema perstans,Infection, Dipetalonema perstans,Infection, Mansonella perstans,Infections, Acanthocheilonema perstans,Infections, Dipetalonema perstans,Infections, Mansonella perstans,Mansonella perstans Infection,Mansonelliases,Mansonelloses,perstans Infection, Acanthocheilonema,perstans Infection, Dipetalonema,perstans Infection, Mansonella,perstans Infections, Acanthocheilonema,perstans Infections, Dipetalonema,perstans Infections, Mansonella
D001938	Brazil	A country located on the eastern coast of South America, located between Colombia and Peru, that borders the Atlantic Ocean. It is bordered on the north by Venezuela, Guyana, Suriname, and French Guiana, on the south by Uruguay, and on the west by Argentina. The capital is Brasilia.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012424	Rural Population	The inhabitants of rural areas or of small towns classified as rural.	Rural Residence,Rural Communities,Rural Spatial Distribution,Communities, Rural,Community, Rural,Distribution, Rural Spatial,Distributions, Rural Spatial,Population, Rural,Populations, Rural,Residence, Rural,Rural Community,Rural Populations,Rural Residences,Rural Spatial Distributions
D012843	Simuliidae	A family of insects in the order DIPTERA, which include black flies, buffalo gnats and simulies. Several species are intermediate hosts (vectors) for the parasitic disease ONCHOCERCIASIS.	Black Flies,Simulium,Blackflies,Black Fly,Blackfly,Flies, Black,Fly, Black,Simuliums
D014505	Urban Population	The inhabitants of a city or town, including metropolitan areas and suburban areas.	Urban Residence,Urban Spatial Distribution,Distribution, Urban Spatial,Distributions, Urban Spatial,Population, Urban,Populations, Urban,Residence, Urban,Urban Populations,Urban Residences,Urban Spatial Distributions