| quantitative studies on the transmission of onchocerca volvulus by simulium damnosum s.l. in the tukuyu valley, south west tanzania. | a survey of the simulium breeding and the transmission of onchocerca volvulus was carried out in and around the tukuyu valley, s.w. tanzania, s. damnosum s.l. was found breeding in the midstretches of the main rivers in the valley and their bigger tributaries, and also in the boundary river to malawi and the most northerly of the three rivers draining the livingstone mts. to lake nyasa (l. malawi). a total of 19,500 s. damnosum s.l. females was caught and 13,200 dissected. the annual biting rate ... | 1985 | 4089477 |
| descriptions of members of the simulium damnosum complex (diptera: simuliidae) from southern africa, ethiopia and tanzania. | this paper presents cytotaxonomic details of five populations of the simulium damnosum complex from south africa, swaziland and ethiopia. the 'nkusi sw' and 'pienaars' forms are newly designated members of the complex from south africa, but the taxonomic rank of an isolate indistinguishable chromosomally from the 'nkusi' cytoform remains unclear. from ethiopia two cytoforms were identified, one of which shares two diagnostic chromosome inversions with the cytoform 'kisiwani' from tanzania. the s ... | 2005 | 15829137 |
| susceptibility of simulium damnosum complex larvae to temephos in the tukuyu onchocerciasis focus, southwest tanzania. | tukuyu onchocerciasis focus was earmarked for vector control using insecticide against larval stages. susceptibility tests of mature larvae of simulium damnosum s.l. vectors to temephos insecticide were carried out before and after two years of insecticide treatment of rivers within tukuyu onchocerciasis focus, south-western tanzania. the tests were done in 1999/2000 and 2004 using who standard methods. mature larvae were exposed to 9 concentrations of temephos active ingredient, from the weakes ... | 2007 | 17547096 |