| culicoides (diptera:ceratopogonidae) associated with livestock in the onderstepoort area, gauteng, south africa as determined by light-trap collections. | in 54 light-trap collections made at 28 sites in the onderstepoort area a total of 178,941 culicoides midges of 35 species was collected in march 1988; the survey was repeated at 26 sites in september and yielded 19,518 culicoides of 24 species. the number of culicoides species collected totalled 38. c,imicola was the most abundant species at 27 of the 28 sites sampled, and accounted for 88% and 67% of all midges collected in the two months respectively. this study not only confirms that c. imic ... | 1996 | 9173363 |
| the prevalence of different african horsesickness virus serotypes in the onderstepoort area near pretoria, during an outbreak of african horsesickness in south africa in 1995/1996. | during 1995/1996 parts of south africa experienced exceptionally high rainfall. large numbers of culicoides midges were seen and an outbreak of african horsesickness (ahs) followed. in the onderstepoort area, near pretoria in gauteng, a number of horses died of suspected ahs. virus isolation and typing was done from blood and/or organ samples of 21 suspected cases as well as from five zebra which were kept in the area. virus was isolated from 14 of the 21 suspected cases but not from the zebra. ... | 2000 | 10843324 |