Bovine Ehrlichiosis

  • C. G. Stewart


Ehrlichia bovis infection in cattle is seldom reported and is usually associated with subclinical infection. A severe disease which was associated with infection with Ehrlichia bovis and known as Nofel, has been reported from the Sudan and other countries in Central Africa. Bovine ehrlichiosis is characterized by irregular fever, drooping of the ears, turning and lymphadenitis. There is a high mortality with animals dying within a few hours in the peracute form of the disease and within 36 to 48 h in the acute form of the disease.

Transmission occurs following bites by infected ticks. Amblyomma variegatum and Rhipicephalus appendiculatus have been proven to be vectors.


Tick Infestation Infected Tick East Coast Fever Amblyomma Variegatum Mild Clinical Sign 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. De Kock G, van Heerden CJ, du Toit R, Neitz WO (1937) Bovine Theileriasis in South Africa with special reference to Theileria mutans. Onderstepoort J Vet Sci 8:9–125Google Scholar
  2. De Vos AJ (1981) Rhipicephalus appendiculatus cause and vector of diseases in Africa. J S Afr Vet Assoc 52:315–322PubMedGoogle Scholar
  3. Donatien A, Lestoquard F (1936) Rickettsia bovis ,nouvelle espéce pathogéne pour le boeuf. Bull Soc Pathol Exot 29:1057–1061Google Scholar
  4. Donatien A, Lestoquard F (1937a) Particularités des Rickettsia des monocytes. Bull Acad Vet 10:183–187Google Scholar
  5. Donatien A, Lestoquard F (1937b) Etat actuel des connaissances sur les rickettsioses animales. Arch Inst Pasteur Algér 15:142–187Google Scholar
  6. Donatien A, Lestoquard F (1940) Rickettsiose bovine Algérienne a R. bovis. Bull Soc Pathol Exot 33:245–248Google Scholar
  7. Du Plessis JL, Camus E, Oberem PT, Malan L (1987) Heartwater serology: some problems with the interpretation of results. Onderstepoort J Vet Res 54:327–329PubMedGoogle Scholar
  8. Finelle P (1958) Note clinique rickettsiose a Rickettsia bovis en Oubangui-Chari. Rev Elev Méd Vet Pays Trop 11:291–292Google Scholar
  9. Fivaz BH (1989) Immune suppression induced by the brown ear tick, Rhipicephalus appendiculatus Neumann 1901. J Parasitol 75:946–952PubMedCrossRefGoogle Scholar
  10. Geering WA, Forman AJ (1987) Animal health in Australia, vol 9. Exotic diseases. Australian Government Publishing Service, Canberra, pp 131–137Google Scholar
  11. Girard H, Rousselot R (1945) La rickettsiose bovine a Rickettsia bovis au Soudan Francais. Bull Soc Pathol Exot 38:64–77Google Scholar
  12. Logan LL, Holland DC J, Mebus CA, Ristic M (1986) Serological relationship between Cowdria ruminantium and certain Ehrlichia species. Vet Rec 119:458–459PubMedCrossRefGoogle Scholar
  13. Malbrant R, Bayron M, Rapin P (1939) Protozooses sanguines des animaux domestiques en A.E.F. Bull Soc Pathol Exot 32:953Google Scholar
  14. Matson BA (1967) Theileriosis in Rhodesia (Zimbabwe): a study of diagnostic specimens over two seasons. J S Afr Vet Med Assoc 38:93–97Google Scholar
  15. Mettam RWM, Carmichael J (1936) Turning sickness, a protozoan encephalitis of cattle in Uganda. Its relationship with East Coast Fever. Parasitology 28:254–283CrossRefGoogle Scholar
  16. Morzaria SP, Irvin AD, Kocan KM, Voight WP (1985) Isolation and characterization of an Ehrlichia sp. from cattle in Kenya. In: Winkler H, Kakoma I, Ristic M (eds) Worksh Diseases caused by leukocytic Rickettsiae of man and animals, University of Illinois, p 30Google Scholar
  17. Norval RAI (1979) Tick infestations and tick-borne diseases in Zimbabwe Rhodesia. J S Afr Vet Assoc 50:289–292PubMedGoogle Scholar
  18. Parrot G (1937) Les rickettsioses conferent-elles l’immunite vraie ou la premunition? Arch Inst Pasteur Algér 15:188–213Google Scholar
  19. Pellissier A, Troquereau P, Trinquier E (1950) Etudes sur les rickettsioses humaines et animales en Afrique Equatoriale Francaise. III Rickettsiose générale du boeuf différente de la heartwater. Bull Soc Pathol Exot 43:168–176Google Scholar
  20. Ressang AA, Iwan T (1985) Jembrana disease. Its similarity to bovine ehrlichiosis. In: Winkler H, Kakoma I, Ristic M (eds) Worksh Disease caused by leukocytic Rickettsiae of man and animals. 14-16 July 1985. University of Illinois, p 39Google Scholar
  21. Rioche M (1966) La rickettsiose generale bovine au Senegal. Rev Elev Méd Vét Pays Trop 19:485–494PubMedGoogle Scholar
  22. Rioche M (1967) Lésions microscopiques de la rickettsiose générale bovine Rickettsia (Ehrlichia) bovis (Donatien et Lestoquard 1936). Rev Elev Méd Vét Pays Trop 20:415–427PubMedGoogle Scholar
  23. Rousselot R (1942) Sur quelques hemocytozoone connues ou inconnues du Soudan Francais. Bull Serv Zootech Fr Epizoot Afr Occident Fr 5:210–222Google Scholar
  24. Rousselot R (1953) Rickettsia bovis ,notes de parasitologic tropicale, vol 1. Parasites du sang des animaux. Vigot Freres, Paris, pp 87–97Google Scholar
  25. Thomas AD, Neitz WO (1958) Rhipicephaline tick toxicosis in cattle: its possible aggravating effect on certain diseases. J S Afr Vet Med Assoc 29:39–50Google Scholar
  26. Weiss E, Moulder JW (1984) The rickettsias and chlamydias. In: Holt JG, Sharp ME, Mair NS, Sneath PHA (eds) Bergey’s manual of systematic bacteriology. Williams and Wilkins, Baltimore, pp 687–739Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • C. G. Stewart
    • 1
  1. 1.Department of Infectious Diseases & Public Health, Faculty of Veterinary ScienceMedical University of Southern AfricaMedunsaSouth Africa

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