Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T12:00:45.486Z Has data issue: false hasContentIssue false
  • English
  • Français

The immunity arising from continuous low-level infection with Eimeria tenella

Published online by Cambridge University Press:  06 April 2009

L. P. Joyner  and
C. C. Norton
L. P. Joyner
Affiliation:
Central Veterinary Laboratory, M.A.F.F., Weybridge, Surrey
C. C. Norton
Affiliation:
Central Veterinary Laboratory, M.A.F.F., Weybridge, Surrey
Get access Rights & Permissions [Opens in a new window]

Extract

Daily infection with doses of approximately five oocysts of Eimeria tenella produced an infection with an extended patency which ceased by the time the birds had received about 140 oocysts. Total oocyst production was comparable with that in birds given the same number of oocysts in a single dose, but the immunity to subsequent heavy challenge was significantly greater. Continuous exposure to low-level infections may be more comparable to the field situation and the present results suggest how birds can acquire a strong immunity without showing evidence of clinical disease.

Type
Research Article
Information
Parasitology , Volume 67 , Issue 3 , December 1973 , pp. 333 - 340
Copyright
Copyright © Cambridge University Press 1973

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

Hodgson, J. N. (1970). Coccidiosis. Oocyst counting technique for coccidiostat evaluation. Experimental Parasitology 28, 99–102.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Norton, C. C. (1969). A comparison of two laboratory strains of Eimerta tenella. Parasitology 59, 907–13.CrossRefGoogle ScholarPubMed
Joyner, L. P. & Norton, C. C. (1971). The recording and analysis of coccidiostatic activity: quinolone and pyridone compounds. Research in Veterinary Science 12, 80–8.CrossRefGoogle ScholarPubMed
Ryley, J. F., & Betts, M. J., (1973). Chemotherapy of chicken coccidiosis. In Advances in Pharmacology and Chemotherapy, vol. 11 (ed. Hawking, Frank and Schnitzer, R. J.). New York. Academic Press. (In the Press.)Google Scholar