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Natural Transmission of Heart-water of Sheep by Amblyomma variegatum (Fabricius 1794)

Published online by Cambridge University Press:  06 April 2009

R. Daubney
R. Daubney
Affiliation:
Division of Veterinary Research, Kenya Colony.
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Extract

The disease “Heart-water” of sheep, cattle and goats has been recognised in South Africa for upwards of 70 years, and as long ago as 1902 Lounsbury demonstrated the part played by the common bont-tick, Amblyomma hebraeum Koch 1844, in its transmission. The virus of the disease does not pass through the egg of the tick, but a tick infected in the larval or the nymphal stages is capable of transmitting the infection when feeding as a nymph or adult respectively. Further, according to Lounsbury, a tick infected as a larva may feed upon an insusceptible host during the nymphal stage, and still remain infective until the final feed as an adult.

Type
Research Article
Information
Parasitology , Volume 22 , Issue 2 , March 1930 , pp. 260 - 267
Copyright
Copyright © Cambridge University Press 1930

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References

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