Publications

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helminth and arthropod parasites of angora goats on irrigated kikuyu grass pastures in the eastern cape province.angora goat kids and yearlings grazing irrigated kikuyu (pennisetum clandestinum) grass pastures in the eastern cape province, became heavily infected with teladorsagia circumcincta and trichostrongylus rugatus, leading to high mortality in both age groups. peak burdens of the former were recorded during march and may, and of the latter during may and june. larger numbers of the cestode moniezia expanza, occurred in the kids than in the yearlings. despite the stress of high helminth burdens, no ...19902286996
ixodid ticks on dogs in the eastern region of the eastern cape province, south africa.the objective of this study was to determine the species composition and geographic distribution of ixodid ticks infesting domestic dogs in the eastern region of the eastern cape province. seventy-two communal cattle dip-tanks within this region were randomly selected as survey localities and their geographic coordinates recorded. in addition to ticks that were collected from five cattle and five goats at each of the dip-tanks, ticks were also collected from five dogs whenever possible. no dogs ...200617283731
use of a molecular epidemiological database to track human rabies case histories in south africa.the kwazulu natal and eastern cape provinces of south africa have experienced a serious dog rabies epidemic over the past three decades. towards a better understanding of this epidemic, we have previously analysed nucleotide sequences of 142 rabies virus specimens that were obtained from these regions during 2003-2004 and provided a molecular description of the geographical distribution of rabies viral variants in the affected provinces. here, as an extension, we studied five human cases that oc ...200817961278
species composition and geographic distribution of ticks infesting cattle, goats and dogs in a temperate and in a subtropical region of south-east africa.the species and distribution of ticks infesting cattle, goats and dogs in the eastern region of the eastern cape province, south africa and maputo province, mozambique were determined from collections made from these animals at 72 localities in the former region and 30 in the latter. eleven ixodid and one argasid species were recovered in the eastern cape province and 15 ixodid species in maputo province. the most common ticks infesting cattle and goats in both provinces were amblyomma hebraeum, ...200921105593
emergence of rabies in the gauteng province, south africa: 2010-2011.canine rabies is enzootic throughout sub-saharan africa, including the republic of south africa. historically, in south africa the coastal provinces of kwazulu-natal and eastern cape were most affected. alarmingly, outbreaks of canine rabies have been increasingly reported in the past decade from sites where it has previously been under control. from january 2010 to december 2011, 53 animal rabies cases were confirmed; these were mostly in domestic dogs from southern johannesburg, which was prev ...201323718320
seroprevalence of toxoplasmosis in sheep in south africa.serum samples from 600 sheep were collected from 5 different provinces randomly chosen in south africa. two sheep abattoirs (representing formal slaughter of sheep) and 1 rural location (representing informal slaughter of sheep) per province were also selected randomly. the serum samples were tested for anti-toxoplasma gondii igg antibodies using 2 different serological tests: an indirect fluorescent antibody (ifa) test and an enzyme-linked immunosorbent assay (elisa) test available as a commerc ...200718237032
emerging epidemic dog rabies in coastal south africa: a molecular epidemiological analysis.towards understanding the molecular epidemiology of a severe dog rabies epidemic in the kwazulu natal province of south africa, we analyzed a variable 592 nucleotide genome sequence domain of 170 rabies viruses from kwazulu natal and surrounding regions. viruses from the kwazulu natal and eastern cape provinces belonged to a unique lineage, circulating as two independent and expanding epidemiological cycles. the first presented as closely related dog cycles along the eastern coastal regions of t ...200717451828
studies on plague in the eastern cape province of south africa.investigations were carried out in the area of a human plague outbreak in march 1982 at coega in the eastern cape province of south africa. trapping revealed that rodent populations were high owing primarily to a population increase of the four-striped mouse, rhabdomys pumilio. flea populations were low and had been declining in the eastern cape province since october 1981. the results of a serological survey from march to october 1982 showed haemagglutinating antibody to yersinia pestis in 0.35 ...19836665833
parasites of domestic and wild animals in south africa. xxii. ixodid ticks on domestic dogs and on wild carnivores.ixodid ticks were collected from 4 dogs on smallholdings near grahamstown, eastern cape province, on 1 or more occasions each week for periods ranging from 9-36 months. fourteen tick species were recovered and the seasonal abundance of adult haemaphysalis leachi and adult rhipicephalus simus was determined. complete collections of ticks were made from 50 caracals (felis caracal) in the cradock, graaff-reinet and southwell regions in the eastern cape province. the animals from cradock and graaff- ...19873444612
rabies in the eastern cape province of south africa--where are we going wrong?rabies is a growing problem in the eastern cape province of south africa. this study investigated dog ecology, vaccination coverage and rabies neutralising antibody levels in 203 randomly selected dogs within a local municipality in the former transkei area. responses to vaccination were also evaluated in 80 of these dogs. the population was remarkably uniform in size, breed and condition. slightly over 1/5th of the population was between 6 weeks and 1 year of age, while very few dogs reached 10 ...201021526734
the use of milbemycin oxime in a prophylactic anthelmintic programme to protect puppies, raised in an endemic area, against infection with spirocerca lupi.spirocerca lupi is primarily a parasite of dogs and other carnivores. clinical signs of infection are regurgitation, vomiting, weight loss, coughing and dyspnoea. sudden death can also occur due to a ruptured aortic aneurysm. in this study, the eastern cape province of south africa was identified as an area with a high prevalence of s. lupi. a subsequent investigation, to evaluate the efficacy of milbemycin oxime as a prophylactic agent for canine spirocercosis, involved 58 puppies that were rai ...201020869809
mokola virus involved in a human contact (south africa).isolations of mokola virus (mokv) are rare, but in south africa and zimbabwe this genotype 3 lyssavirus variant has been occasionally found in domestic mammals (cats and a dog) with a total of 17 virus isolates (south africa 10, zimbabwe 7) having been recovered during the past 30 years. we report the identification of a mokv isolate involved in a human contact in grahamstown (eastern cape, south africa) and a genetic comparison with previously characterized isolates. this reported mokv case was ...201019817861
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