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Mechanical carrier of bacterial enteric pathogens by Chrysomya megacephala (Diptera: Calliphoridae) in Chiang Mai, Thailand.
Southeast Asian J Trop Med Public Health ; 2000 ; 31 Suppl 1(): 157-61
Article en En | IMSEAR | ID: sea-31374
Chrysomya megacephala was studied regarding its mechanically bacterial carrier in urban areas of Chiang Mai, northern Thailand. Fifty-six adult flies were randomly collected using sweep insect net during April-May, 1999 from 3 fresh food markets and examined for bacteriological isolation. Among them, 49 flies (87.5%) were bacterial carriers. The total 22 bacterial species and 8 groups were isolated. Three species previously reported as the bacterial enteric pathogens causing diarrheal disease were isolated from 5 flies, ie Aeromonas hydrophila, Edwardsiella tarda and Vibrio cholerae non-01, with their prevalence rates in flies being 3.579, 1.79% and 3.57%, respectively. Five possible bacteria enteric pathogens, ie Aermononas sobria, Citrobacter freundii, Escherichia coli, Providencia alcalifaciens and Pseudomonas aeruginosa, were isolated from 21 flies with the prevalence rates in flies being 5.34%, 3.57%, 26.79%, 7.14% and 1.79%, respectively. The bacterial load isolated from all 3 pathogenic species was entirely found more than 10 colony per fly, indicating the high chance for disease transmission via this fly species. C. megacephala may play the possible and/or important role of bacterial enteric pathogens transmission, thereby promoting the public health personnel for sanitation improvement in fresh food markets and fly control management in these particular areas.
Asunto(s)
Texto completo: 1 Índice: IMSEAR Asunto principal: Tailandia / Humanos / Dípteros / Enterobacteriaceae / Animales País/Región como asunto: Asia Idioma: En Revista: Southeast Asian J Trop Med Public Health Año: 2000 Tipo del documento: Article
Texto completo: 1 Índice: IMSEAR Asunto principal: Tailandia / Humanos / Dípteros / Enterobacteriaceae / Animales País/Región como asunto: Asia Idioma: En Revista: Southeast Asian J Trop Med Public Health Año: 2000 Tipo del documento: Article