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Browsing by UP Author "Braack, L.E.O."
Now showing items 1-20 of 40
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Braack, L.E.O.; Meiswinkel, R.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)During the culling of elephants (Loxodonta africana) at five sites in the Kruger National Park, South Africa, a total of 682 Culicoides of five species of the subgenus Avaritia were found live either behind the ears of ...
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Sibanda, Mthokozisi Mayibongwe; Focke, Walter Wilhelm; Braack, L.E.O.; Leuteritz, Andreas; Brünig, Harald; Tran, Nguyen Hoai An; Wieczorek, Florian; Trümper, Wolfgang (Elsevier, 2018-10)Core-sheath structured fibres were developed for application as part of an alternative malaria vector control intervention aimed at reducing outdoor malaria transmission. The fibres were prepared by melt spinning of high ...
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Braack, L.E.O.; Hunt, Richard H.; Koekemoer, Lizette L.; Gericke, Anton; Munhenga, Givemore; Haddow, Andrew D.; Becker, Piet J.; Okia, Michael; Kimera, Isaac; Coetzee, Maureen (BioMed Central, 2015-02)BACKGROUND : Malaria control in Africa relies heavily on indoor vector management, primarily indoor residual spraying and insecticide treated bed nets. Little is known about outdoor biting behaviour or even the dynamics ...
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Braack, L.E.O.; Horak, Ivan Gerard; Jordaan, Leonora C.; Louw, J.P.; Segerman, Joyce; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)Red veld rats (Aethomys chrysophilus) and bushveld gerbils (Tatera leucogaster) were trapped at monthly intervals, when possible, over a 2-year period, in the southern Kruger National Park, Mpumalanga Province. Forty-six ...
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Mixao, Verónica; Barriga, Daniel Bravo; Parreira, Ricardo; Novo, Maria Teresa; Sousa, Carla Alexandra; Frontera, Eva; Venter, Marietjie; Braack, L.E.O.; Almeida, Antonio Paulo Gouveia (BioMed Central, 2016-11-25)BACKGROUND : Culex univittatus and Culex perexiguus mosquitoes (Diptera: Culicidae) are competent arbovirus vectors, but with unclear morphological differentiation. In Europe, and in the Iberian Peninsula in particular, ...
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Brisco, Katherine K.; Cornel, Anthony J.; Lee, Yoosook; Mouatcho, Joel; Braack, L.E.O. (Faculty of 1000, 2016-04)In this study we tested an alternative method for collecting mosquito larvae called the sweep net catch method and compared its efficiency to that of the traditional dip method. The two methods were compared in various ...
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Schmidt, Hanno; Hanemaaijer, Mark J.; Cornel, Anthony J.; Lanzaro, Gregory C.; Braack, L.E.O.; Lee, Yoosook (Taylor and Francis Open, 2018-10-03)The Aedes aegypti mitogenome (Mt) sequences of field isolates from California and South Africa revealed a deletion between position 14,522 and 14,659 of the Mt contig of the AaegL5 reference genome. The length of the ...
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Mouatcho, Joel Claude; Cornel, Anthony J.; Dahan‑Moss, Yael; Koekemoer, Lizette L.; Coetzee, Maureen; Braack, L.E.O. (BioMed Central, 2018-05-15)BACKGROUND : The Anopheles gambiae sensu lato (s.l.) and Anopheles funestus s.l. species complexes contain the most important malaria vectors in Africa. Within the An. funestus group of at least 11 African species, the ...
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Braack, L.E.O.; Retief, P.F.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1986)16 000 Chrysomyia albiceps and 52 000 C. marginalis adults were radioactively labelled with ³²P-orthophosphate and released in the northern Kruger National Park, South Africa. After a 1-week dispersal period 69 baited ...
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Horak, Ivan Gerard; Braack, L.E.O.; Spickett, Arthur M.; Van Ark, H.; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1991)Free-living ticks were collected by means of drag-sampling in 32 of the 35 landscape zones of the Kruger National Park during a period of 1 calendar month. Of the 18 199 specimens collected, 99,53% were larvae, 0,05% nymphs ...
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Horak, Ivan Gerard; Braack, L.E.O.; Spickett, Arthur M.; Van Niekerk, Andrea; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)A supervised veld-burn in the Sclerocarya caffra/Acacia nigrescens Savanna landscape zone in the south-eastern region of the Kruger National Park was carried out during September 1988. The effect of the fire on the free-living ...
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Bigio, Jacob; Braack, L.E.O.; Chea, Thy; Set, Srun; Suon, Sokha; Echaubard, Pierre; Hustedt, John; Debackere, Mark; Ramirez, Bernadette; Prasetyo, Didot Budi; Bunleng, Sam; Wharton-Smith, Alexandra; Hii, Jeffrey (Public Library Science, 2022-01-25)Cambodia has one of the highest dengue infection rates in Southeast Asia. Here we report quantitative entomological results of a large-scale cluster-randomised trial assessing the impact on vector populations of a package ...
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Thomson, G.R. (Gavin); Braack, L.E.O.; Doube, B.M.; Gainaru, M.D.; Bengis, Roy G.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)In 2 separate experiments the blood-feeding fly Haematobia thirouxi potans (Bezzi) failed to transmit foot and- mouth disease virus when transferred from viraemic (log 2,6 - log 4,3 MLD₅₀ or TCID₅₀/ml) to susceptible ...
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Braack, L.E.O.; De Vos, Valerius; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1990)Carrion-frequenting blow-flies (Chrysomyia albiceps and C. marginalis) were allowed 4 days of feeding on ³²P-orthophosphate-labelled blood or an Impala carcass (Aepyceros melampus) in the northern Kruger National Park, ...
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Munhenga, Givemore; Brooke, Basil D.; Spillings, Belinda; Essop, Leyya; Hunt, Richard H.; Midzi, Stephen; Govender, Dhanashree (Danny); Braack, L.E.O.; Koekemoer, Lizette L. (BioMed Central, 2014-01-24)BACKGROUND: Knowledge of the ecology and behaviour of a target species is a prerequisite for the successful development of any vector control strategy. Before the implementation of any strategy it is essential to ...
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Horak, Ivan Gerard; Braack, L.E.O.; Louw, J.P.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)A total of 380 scrub hares (Lepus saxatilis) from 5 localities, ranging from the north-eastern Transvaal to the eastern and the south-western Cape Province of South Africa, were examined for fleas and lice. Ctenocephalides ...
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Horak, Ivan Gerard; Braack, L.E.O.; Louw, J.P.; Horak, M. Louise; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)Fleas, lice and mites were collected from 24 and 120 scrub hares at Pafuri and Skukuza, Northern and Eastern Transvaal, respectively, in the Kruger National Park, and from 34 scrub hares in the Hluhluwe region, north-eastern ...
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Braack, L.E.O. (BioMed Central, 2016-04-12)BACKGROUND : Despite high levels of naturally-acquired immunity (NAI) within local communities in malaria high transmission settings in Africa, such people often experience clinical disease during peak transmission months ...
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Braack, L.E.O.; Bornman, Maria S. (Riana); Kruger, Taneshka; Dahan-Moss, Yael; Gilbert, Allison; Kaiser, Maria; Oliver, Shuné V.; Cornel, Anthony J.; Lee, Yoosook; Norris, Douglas E.; Brooke, Basil; Coetzee, Maureen; De Jager, Christiaan (MDPI Publishing, 2020-06-09)Despite the annual implementation of a robust and extensive indoor residual spraying programme against malaria vectors in Limpopo Province (South Africa), significant transmission continues and is a serious impediment ...
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Grobbelaar, Antoinette; Jardine, Jocelyn; Burt, Felicity J.; Shepherd, Alasdair J.; Shepherd, Susan P.; Leman, Patricia A.; Kemp, Alan; Braack, L.E.O.; Weyer, Jacqueline; Paweska, Janusz Tadeusz; Swanepoel, Robert (Centers for Disease Control and Prevention, 2021-12)We conducted a survey for group-specific indirect immunofluorescence antibody to mammarenaviruses by using Lassa fever and Mopeia virus antigens on serum specimens of 5,363 rodents of 33 species collected in South Africa ...
Now showing items 1-20 of 40