A5054857855- Vector-Borne Animal Diseases
- Animal Disease Management and Epidemiology
- Viral Infections and Vectors
- Plant Virus Research Studies
- Vector-borne infectious diseases
- Insect and Arachnid Ecology and Behavior
- Trypanosoma species research and implications
- Evolution and Paleontology Studies
- Viral gastroenteritis research and epidemiology
- Wildlife Ecology and Conservation
- Insect and Pesticide Research
- Phytoplasmas and Hemiptera pathogens
- Insect symbiosis and bacterial influences
- Genetic diversity and population structure
- Viral Infectious Diseases and Gene Expression in Insects
- Agriculture and Farm Safety
Onderstepoort Veterinary Institute
2003-2022
University of Pretoria
2006-2019
Onderstepoort Veterinary Academic Hospital
2015-2019
Tsetse flies are the sole vectors of human African trypanosomiasis throughout sub-Saharan Africa. Both sexes adult tsetse feed exclusively on blood and contribute to disease transmission. Notable differences between other include obligate microbial symbioses, viviparous reproduction, lactation. Here, we describe sequence annotation 366-megabase Glossina morsitans genome. Analysis genome 12,308 predicted protein-encoding genes led multiple discoveries, including chromosomal integrations...
Confirmed outbreaks of African horse sickness (AHS) occurred in the surveillance zone Western Cape 1999 and 2004, both which led to a two-year suspension on export horses. Light trap surveys outbreak areas showed that known vector competent Culicoides species, notably C. imicola, were abundant present numbers equal those traditional AHS endemic areas. Isolations virus serotypes 1 7, equine encephalosis virus, bluetongue from field-collected imicola demonstrated this species was highly could...
Intragenic recombination has been described in various RNA viruses as a mechanism to increase genetic diversity, resulting increased virulence, expanded host range, or adaptability changing environment. Orbiviruses are no exception this, with intragenic previously detected the type species, bluetongue virus (BTV). African horse sickness (AHSV) is double-stranded belonging Oribivirus genus family Reoviridae. Genetic through reassortment AHSV, but not homologous recombination. The influence of...
The effective control of tsetse flies (Diptera; Glossinidae), the biological vectors trypanosome parasites that cause human African trypanosomosis and animal throughout sub-Saharan Africa, is crucial for development productive livestock systems. degree genetic isolation targeted populations, which indicate reinvasion potential from uncontrolled areas, will be critical to establish a strategy. Molecular morphometrics markers were used assess between seemingly fragmented populations Glossina...
Equine encephalosis virus (EEV) is a neglected endemic to South Africa and considered generally result in mild disease equines. Specimens were analyzed from live horses that presented with undefined neurological, febrile, or respiratory signs, sudden unexpected death. Between 2010 2017, 111 of 1523 (7.3%) horse samples tested positive for EEV using nested real-time reverse transcriptase polymerase chain reaction (rRT-PCR). Clinical signs reported 106 (7.2%) 1360 negative included pyrexia...