Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-19T23:28:49.158Z Has data issue: false hasContentIssue false

Nairobi Sheep Disease: Natural and Experimental Transmission by Ticks other than Rhipicephalus appendiculatus

Published online by Cambridge University Press:  06 April 2009

R. Daubney
Affiliation:
Division of Veterinary Research, Kabete, Kenya Colony
J. R. Hudson
Affiliation:
Division of Veterinary Research, Kabete, Kenya Colony

Extract

Montgomery (1917) showed that Nairobi sheep disease was commonly transmitted by Rhipicephalus appendiculatus. In 1931 we confirmed Montgomery's findings and extended them considerably in respect of transmission by this species of tick. It was shown that infection of any instar would result in transmission by the next succeeding stage, which would then in the normal course lose its infection during the next moult. A female tick infected in this manner as an adult would pass infection through the eggs to the larvae of the next generation. Further it was demonstrated that the transmitting stage could be reinfected if the reaction of the host animal commenced before the infecting meal was completed, thus ensuring the carrying on of infetion for a further stage.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1934

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Daubney, R. and Hudson, J. R. (1931). Nairobi sheep disease. Parasitology, 23, 507–24.CrossRefGoogle Scholar
Lewis, E. A. (1932). Some tick investigations in Kenya Colony. Parasitology, 24, 175–82.Google Scholar
Lewis, E. A. (1934). A study of the ticks in Kenya Colony. Part III. Bull. of Kenya Agricultural Dept. Nairobi (in press).Google Scholar
Montgomery, R. E. (1917). On a tick-borne gastro-enteritis of sheep and goats, occurring in East Africa. J. Comp. Path. and Therap. London, 30, 28.CrossRefGoogle Scholar
Nuttall, G. H. F. (1913). Observations on the biology of Ixodidae. Part I. Parasitology, 6, 105–10.CrossRefGoogle Scholar
Patton, W. S. and Cragg, F. W. (1913). A Textbook of Entomology, pp. 610 and 611.Google Scholar
Storey, H. A. (1933). Mechanism of transmission of plant viruses by insect vectors. Proc. Roy. Soc. B, 113, 463.Google Scholar