Filariasis elimination in Egypt: impact of low microfilaraemics as sources of infection for mosquitoes
EMHJ-Eastern Mediterranean Health Journal. 2003; 9 (4): 863-872
em Inglês
| IMEMR
| ID: emr-158223
ABSTRACT
The elimination strategy for lymphatic filariasis aims at reducing blood microfilaraemia to levels at which vector transmission cannot be sustained. We aimed to determine whether patients with pre-treatment low or ultra-low microfilaria [MF] counts could be a reservoir of infection after mass drug administration [MDA] with a combined regimen. Laboratory-reared mosquitoes were fed on 30 volunteers after 2 rounds of MDA. Microfilaria uptake, infectivity rates and number of Wuchereria bancrofti L3 per mosquito were assessed. One year after MDA-1, 6 subjects transmitted MF, but up to 9 months after MDA-2 transmission failed. Six months after MDA-2 > 90% had clear MF smears and either failed to transmit MF or transmitted MF that did not develop to L3. We conclude that the transmission cycle is seriously weakened after MDA-2
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Índice:
IMEMR (Mediterrâneo Oriental)
Assunto principal:
Contagem de Ovos de Parasitas
/
Fatores de Tempo
/
Wuchereria bancrofti
/
Reservatórios de Doenças
/
Portador Sadio
/
Albendazol
/
Culex
/
Dietilcarbamazina
/
Comportamento Alimentar
/
Filaricidas
Limite:
Animais
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
East Mediterr Health J.
Ano de publicação:
2003
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