A5060603764- Vector-Borne Animal Diseases
- Vector-borne infectious diseases
- Viral Infections and Vectors
- Plant Virus Research Studies
- Poxvirus research and outbreaks
- Insect and Pesticide Research
- Insect Pest Control Strategies
- Plant Pathogenic Bacteria Studies
- Study of Mite Species
- Plant Parasitism and Resistance
- Parasitic Infections and Diagnostics
- Toxoplasma gondii Research Studies
- Microbial infections and disease research
- Mosquito-borne diseases and control
- Yersinia bacterium, plague, ectoparasites research
- Helminth infection and control
- Trypanosoma species research and implications
- Plant-Microbe Interactions and Immunity
University of Pretoria
2004-2025
Onderstepoort Veterinary Academic Hospital
2004-2025
Lumpy skin disease (LSD) is an economically important cattle disease. The endemic in many African countries, but outbreaks have also been reported Madagascar and the Middle East. aim of this study was to investigate potential role ixodid (hard) ticks transmission Cattle were infected with a virulent, South field isolate lumpy virus (LSDV). Three common tick species (genera Rhipicephalus, Amblyomma Rhipicephalus (Boophilus)) different life cycle stages fed on animals during viraemic stage...
SUMMARY Lumpy skin disease (LSD) is an economically important, acute or sub-acute, viral of cattle that occurs across Africa and in the Middle East. The aim this study was to investigate if lumpy virus (LSDV) can be transmitted mechanically by African brown ear ticks ( Rhipicephalus appendiculatus Neum.). Laboratory-bred R. males were fed on experimentally infected viraemic ‘donor’ cattle. Partially male then transferred feed uninfected ‘recipient’ cow. recipient animal became viraemic,...
ABSTRACT Pathogen DNA was isolated from roan antelope ( Hippotragus equinus ), sable niger greater kudu Tragelaphus strepsiceros and common gray duiker Sylvicapra grimmia ) in South Africa whose deaths were attributed to either theileriosis or cytauxzoonosis. We developed Theileria species-specific probes used combination with reverse line blot hybridization assays identified three different species of four African species. The close phylogenetic relationship between members the genera...
Lumpy skin disease (LSD) is an economically important caused by LSD virus (LSDV), a Capripoxvirus, characterized fever and circumscribed lesions. It suspected to be transmitted mechanically biting flies. To assess the vector potential of Amblyomma hebraeum in transmission LSDV, mechanical/intrastadial transstadial modes this tick species were investigated. Two cattle artificially infected as sources (donors) infection ticks. Ticks either nymphs or adults. Male A. ticks partially fed on donor...
Amblyomma spp. ticks, known for their long mouthparts, bright ornate appearance and aggressive hunting behaviour, are vectors of a number important pathogens. In southern Africa, 17 currently documented. Of these species, hebraeum variegatum have been well studied due to wide geographical range status as competent pathogens that veterinary medical importance. Studies on other in Africa neglected, fostering ongoing debates the validity certain species such pomposum. This study investigated...
Four hand-reared, naïve roan antelope, 4 months of age, were exposed to naturally infected pasture on a game farm in Mpumalanga Province, South Africa, where are known die from theileriosis. Various clinical parameters recorded during this period. The predominant ticks parasitising these animals at the time (January February), Rhipicephalus appendiculatus and evertsi adults. After period 5 weeks developed signs theileriosis treated with buparvaquone prevent mortality. Primary hyperplasia...
As resistance to chemical acaricides increases amongst tick populations, investigations of natural remedies that have acaricidal or tick-repellent effects become essential in the search for alternatives sustainable control. Garlium GEM HC (Garlium), a concentrated garlic product, was supplemented in-feed beef cattle determine if it could assist reducing number attached ticks on cattle. Two grams daily eight Bonsmara steers over 43 days. A second group served as controls. All animals were...
A 12-month study was conducted in 4 communal grazing areas the Bushbuckridge region, Limpopo Province, South Africa. The main objective to investigate impact of reduced acaricide application on endemic stability bovine babesiosis (Babesia bigemina and Babesia bovis) anaplasmosis (Anaplasma marginale) local cattle population. To this end 60 each area were bled at beginning conclusion experimental period their sera assayed for B. bovis, Anaplasma antibodies. Cattle intensively dipped group 26...
A survey was conducted at 30 communal dip tanks and on 5 commercial farms in Limpopo Province, South Africa, during 1999 2000 to determine the seroprevalence of antibodies Babesia bovis bigemina. Cattle seropositive for B. were found 97% herds land; overall changed little between (63.3%) (62.4%). All surveyed infected with bigemina, decreased significantly from 56.1% 49.3% 2000. In land Sour Lowveld Bushveld, increased 70% 80% 2000, while bigemina 30% This possibly due an influx...
Tick-borne rickettsioses are considered among the oldest known vector-borne zoonotic diseases. Among rickettsiae, Rickettsia africae is most reported and important in Africa, as it aetiological agent of African tick bite fever (ATBF). Studies describing prevalence R. southern Africa fragmented, they limited to small geographical areas focused on Amblyomma hebraeum variegatum vectors. spp. ticks were collected Angola, Mozambique, South Zambia Zimbabwe during sampling period from March 2020...