Seasonality, parity rates and transmission indices of Mansonella ozzardi (Manson) (Nematoda: Onchocercidae) by Cerqueirellum argentiscutum (Shelley & Luna Dias) (Diptera: Simulidae) in a lower Solimões River community, Amazonas, Brazil
Mansonella ozzardi is transmitted by two dipterian families, Ceratopogonidae (midges) and Simuliidae (black flies). In Brazil, black flies are vectors for this filariasis until now. In this paper, we determined the seasonality, parity capacity and parasitic infection rate of Cerqueirellum argentiscu...
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Published in | Acta amazonica Vol. 34; no. 2; pp. 201 - 207 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Instituto Nacional de Pesquisas da Amazônia
2004
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Subjects | |
Online Access | Get full text |
ISSN | 0044-5967 0044-5967 |
DOI | 10.1590/S0044-59672004000200008 |
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Summary: | Mansonella ozzardi is transmitted by two dipterian families, Ceratopogonidae (midges) and Simuliidae (black flies). In Brazil, black flies are vectors for this filariasis until now. In this paper, we determined the seasonality, parity capacity and parasitic infection rate of Cerqueirellum argentiscutum. The work was carried out in the Porto Japão community, Lower Solimões River, Amazonas, Brazil. Results show that the black flies were more abundant during the rainy season (from December to May). The number of parous flies was higher in every sampling during the course of year. Monthly Biting Rate (MBR1 123742.00, MBR2 86701.50) was high, although Parasitic Infection Rate (PIR1 0.06, PIR2 0.08) and Annual Transmission Potential (ATP 7.25) were low in numbers.
Mansonella ozzardi é transmitida por dois grupos distintos de insetos, Ceratopogonidae e Simuliidae. No Brasil, os simulídeos são os vetores dessa filariose. Neste trabalho, o objetivo foi determinar a sazonalidade, a paridade e a taxa de infecção parasitária de Cerqueirellum argentiscutum. O experimento foi realizado na comunidade Porto do Japão, Baixo rio Solimões, Amazonas, Brasil. Os simulídeos foram mais abundantes no período de chuva (dezembro a maio). Em todos os meses de coletas o número de paríparas foi maior. A taxa mensal de picada (TMP1 123742.00, TMP2 86701.50) foi elevada, já a taxa de infecção parasitária (TIP1 0.06, TIP2 0.08) e o potencial de transmissão anual (PTA 7.25) foram considerados baixos. |
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Bibliography: | 10.1590/S0044-59672004000200008 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000200008 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0044-5967 0044-5967 |
DOI: | 10.1590/S0044-59672004000200008 |