نتایج جستجو برای: simulium
تعداد نتایج: 778 فیلتر نتایج به سال:
Onchocerciasis a filarial parasitic nematode, also known as river blindness and Robles disease, is a neglected tropical disease infecting more than 18 million people mainly in sub-Saharan of Africa, the Middle East, South and Central America and many other countries. Disease infectivity initiates from Onchocerca volvulus (Filarioidea: Onchocercidae) transmitted by the blackfly, Simulium sp. whi...
Recent studies on the epidemiology and control of Guatemalan onchocerciasis, chiefly made by the Guatemala-Japan Cooperative Project on Onchocerciasis Research and Control, are reviewed. Epidemiological features of Guatemalan onchocerciasis are summarized as to characteristic altitudinal distribution of endemic areas, disease manifestation, vector taxonomy, biology and transmission dynamic of t...
Members of the family Iridoviridae are animal viruses that infect only invertebrates and poikilothermic vertebrates. Invertebrate iridescent virus 22 (IIV-22) was originally isolated from the larva of a blackfly (Simulium sp., order Diptera) found in the Ystwyth river, near Aberystwyth, Wales, UK. IIV-22 virions are icosahedral, with a diameter of about 130 nm and contain a dsDNA genome that is...
Chromosomes in the nuclei of living salivary glands of Simulium have been observed with Nomarski optics and polarized light before and during irrigation with various fixatives. All cause loss of chromosomal organization to some degree. The best fixative is redistilled glutaraldehyde; even so, although it leaves the nucleus visually unaltered, a network forms in the nuclear sap and birefringence...
Parasites of larval black flies are reported for the first time from Thailand, including mermithid nematodes (Mermithidae), microsporidian fungi (Zygomycota), and the fungus Coelomycidium simulii Debaisieux (Blastocladiomycetes). The following nine species of black flies were infected with one or more parasites: Simulium asakoae, S. chamlongi, S. chiangmaiense, S. fenestratum, S. feuerborni, S....
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