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Investigations on a Babesia isolated from Scottish sheep

Published online by Cambridge University Press:  08 November 2011

R. E. Purnell ,
D. Lewis ,
M. R. Holman  and
E. R. Young
R. E. Purnell
Affiliation:
ARC, Institute for Research on Animal Diseases, Compton, Near Newbury, Berkshire
D. Lewis
Affiliation:
ARC, Institute for Research on Animal Diseases, Compton, Near Newbury, Berkshire
M. R. Holman
Affiliation:
ARC, Institute for Research on Animal Diseases, Compton, Near Newbury, Berkshire
E. R. Young
Affiliation:
ARC, Institute for Research on Animal Diseases, Compton, Near Newbury, Berkshire
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Summary

The pathognomic, serologie and morphometric identity of a Babesia sp. recently isolated from sheep in Argyllshire was studied. Initially, problems were encountered due to the occurrence of Eperythrozoon ovis as a contaminant of the isolate and treatment with neoarsphenamine failed to remove it. Finally, a combination of oxytetracycline therapy and rapid passage allowed isolation of the Babesia sp. and its preservation in the form of a glycerolized, infected blood stabilate. Inoculation of the stabilate into splenectomized sheep produced a mild non-pyrogenic disease. Serologically the parasite was seen to have no affinity with either of the two Babesia recognized as parasitizing sheep, but some affinity with the cattle parasite B. divergens. Morphometrically it was seen to have affinity with the deer parasite B. capreoli and with the Babesia sp. isolated from red deer in Scotland, and the low number of budding forms of the parasite seen suggested that the parasite might be reproducing slowly in an alien host. It was concluded that the parasite was likely to be B. capreoli derived from red deer via the tick Ixodes ricinus.

Type
Research Article
Information
Parasitology , Volume 83 , Issue 2 , October 1981 , pp. 347 - 356
Copyright
Copyright © Cambridge University Press 1981

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References

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