Erich Zweygarth

Summary

Affiliation: Onderstepoort Veterinary Institute
Country: South Africa

Publications

  1. ncbi Continuous in vitro cultivation of Babesia gibsoni
    E Zweygarth
    Onderstepoort Veterinary Institute, Parasitology Division, South Africa
    Parasitol Res 86:905-7. 2000
  2. ncbi Culture, isolation and propagation of Babesia caballi from naturally infected horses
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Parasitology Division, South Africa
    Parasitol Res 88:460-2. 2002
  3. ncbi In vitro infection of nonendothelial cells by Ehrlichia ruminantium
    E Zweygarth
    Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa
    Ann N Y Acad Sci 990:573-80. 2003
  4. doi Sequence heterogeneity in the 18S rRNA gene within Theileria equi and Babesia caballi from horses in South Africa
    Raksha Bhoora
    Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
    Vet Parasitol 159:112-20. 2009
  5. doi In vitro cultivation of a Theileria species from a roan antelope (Hippotragus equinus)
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Onderstepoort, South Africa
    Parasitol Res 105:1755-7. 2009
  6. ncbi An attenuated Ehrlichia ruminantium (Welgevonden stock) vaccine protects small ruminants against virulent heartwater challenge
    Erich Zweygarth
    Molecular Biology, Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa
    Vaccine 23:1695-702. 2005
  7. doi Experimental use of the attenuated Ehrlichia ruminantium (Welgevonden) vaccine in Merino sheep and Angora goats
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Onderstepoort 0110, South Africa
    Vaccine 26:G34-9. 2008
  8. doi Evaluation of a TaqMan real-time PCR for the detection of Theileria parva in buffalo and cattle
    Natasha Papli
    Onderstepoort Veterinary Instititute, Agricultural Research Council, Private Bag X05, Onderstepoort 0110, South Africa
    Vet Parasitol 175:356-9. 2011
  9. doi Theileria-infected cell line from an African buffalo (Syncerus caffer)
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort, Pretoria, 0110, South Africa
    Parasitol Res 105:579-81. 2009
  10. pmc The genome of the heartwater agent Ehrlichia ruminantium contains multiple tandem repeats of actively variable copy number
    Nicola E Collins
    Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
    Proc Natl Acad Sci U S A 102:838-43. 2005

Collaborators

Detail Information

Publications16

  1. ncbi Continuous in vitro cultivation of Babesia gibsoni
    E Zweygarth
    Onderstepoort Veterinary Institute, Parasitology Division, South Africa
    Parasitol Res 86:905-7. 2000
    ..Culture-derived parasites were cryopreserved and resuscitated. Cultures of each stock were propagated for 102 days and 51 days, respectively, before they were terminated...
  2. ncbi Culture, isolation and propagation of Babesia caballi from naturally infected horses
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Parasitology Division, South Africa
    Parasitol Res 88:460-2. 2002
    ..Among the eight samples seropositive for both B. caballi and T. equi, two were identified as carriers for both. The remaining six samples were identified as carrying only T. equi...
  3. ncbi In vitro infection of nonendothelial cells by Ehrlichia ruminantium
    E Zweygarth
    Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa
    Ann N Y Acad Sci 990:573-80. 2003
    ..ruminantium, Senegal, Ball 3, and Gardel, were also propagated, either in LFT cultures only or in both E(2) and LFT cell cultures. The Welgevonden stock was successfully initiated using E(2) and LFT cell cultures...
  4. doi Sequence heterogeneity in the 18S rRNA gene within Theileria equi and Babesia caballi from horses in South Africa
    Raksha Bhoora
    Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
    Vet Parasitol 159:112-20. 2009
    ..caballi is required prior to the development of molecular diagnostic tests to detect these parasites in horses. Species-specific probes must be in designed in regions of the gene that are both conserved within and unique to each species...
  5. doi In vitro cultivation of a Theileria species from a roan antelope (Hippotragus equinus)
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Onderstepoort, South Africa
    Parasitol Res 105:1755-7. 2009
    ..The phylogenetic analysis showed that this isolate is closely related to several undescribed Theileria spp. which have previously been identified from a dog and some other antelope species in South Africa...
  6. ncbi An attenuated Ehrlichia ruminantium (Welgevonden stock) vaccine protects small ruminants against virulent heartwater challenge
    Erich Zweygarth
    Molecular Biology, Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa
    Vaccine 23:1695-702. 2005
    ....
  7. doi Experimental use of the attenuated Ehrlichia ruminantium (Welgevonden) vaccine in Merino sheep and Angora goats
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Onderstepoort 0110, South Africa
    Vaccine 26:G34-9. 2008
    ..The attenuated vaccine was further evaluated in highly susceptible Angora goats. Although the attenuated vaccine showed an unexpectedly high degree of virulence, animals were fully protected against a lethal needle challenge...
  8. doi Evaluation of a TaqMan real-time PCR for the detection of Theileria parva in buffalo and cattle
    Natasha Papli
    Onderstepoort Veterinary Instititute, Agricultural Research Council, Private Bag X05, Onderstepoort 0110, South Africa
    Vet Parasitol 175:356-9. 2011
    ..parva infections in buffalo and cattle and was shown to be equally sensitive. A panel of 1164 field samples was screened using both assays and 164 samples tested positive in both tests, indicating a good correlation...
  9. doi Theileria-infected cell line from an African buffalo (Syncerus caffer)
    Erich Zweygarth
    Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort, Pretoria, 0110, South Africa
    Parasitol Res 105:579-81. 2009
    ..buffalo, previously described in literature. Here, the first successful attempt to establish a macroschizont-infected lymphoblastoid cell line of Theileria sp. (buffalo) from an African buffalo is described...
  10. pmc The genome of the heartwater agent Ehrlichia ruminantium contains multiple tandem repeats of actively variable copy number
    Nicola E Collins
    Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
    Proc Natl Acad Sci U S A 102:838-43. 2005
    ..Rather then being the result of the reductive evolution seen in other intracellular bacteria, these pseudogenes appear to be the product of ongoing sequence duplication events...
  11. ncbi Ehrlichia ruminantium: a promiscuous genome
    Maria Allsopp
    Onderstepoort Veterinary Institute, Onderstepoort 0110, South Africa
    Ann N Y Acad Sci 1063:102-4. 2005
    ..We therefore amplified and sequenced a panel of seven core function genes...
  12. pmc Identification of a novel Babesia sp. from a sable antelope (Hippotragus niger Harris, 1838)
    Marinda C Oosthuizen
    Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa
    J Clin Microbiol 46:2247-51. 2008
    ..sable) DNA. In summary, we identified a novel piroplasm parasite from a sable antelope that died from an unknown illness. While the parasite was observed in blood smears, there is no direct evidence that it was the cause of death...
  13. ncbi Development of improved vaccines for heartwater
    Nicola E Collins
    Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort 0110, South Africa
    Ann N Y Acad Sci 990:474-84. 2003
    ..This suggests that the local E. ruminantium genotypes were different from any which were administered by needle challenge, or that needle challenge is not a good model for tick challenge in the field...
  14. ncbi Attenuated vaccines for tropical theileriosis, babesiosis and heartwater: the continuing necessity
    Varda Shkap
    Division of Parasitology, Kimron Veterinary Institute, Bet Dagan, Israel
    Trends Parasitol 23:420-6. 2007
    ..As a result, there is a continuing necessity to use available live vaccines in tick and tick-borne disease-control strategies adapted to conditions prevailing in many parts of the world...
  15. ncbi Electron microscopic investigations on stages of dog piroplasms cultured in vitro: Asian isolates of Babesia gibsoni and strains of B. canis from France and Hungary
    Susanne Walter
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat, Dusseldorf, Germany
    Parasitol Res 88:32-7. 2002
    ..canis cultured in vitro. While the developmental stages of the latter preserved their shape in culture, many of the initially small stages of the B. gibsoni strains grew considerably and often looked rather similar to B. canis...
  16. ncbi Establishment of optimal conditions for long-term culture of erythrocytic stages of Theileria uilenbergi
    Joana P G Miranda
    Experimental and Technological Biology Institute Chemical and Biological Technology Institute, Universidade Nova de Lisboa, 2780 901 Oeiras, Portugal
    Am J Vet Res 67:1908-13. 2006
    ..To establish optimal conditions for long-term culture of the erythrocytic stage of Theileria uilenbergi...